TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
HYPHO- [3 records]
Record 1 - internal organization data 2003-10-29
Record 1, English
Record 1, Subject field(s)
- Chemical Elements and Compounds
Record 1, Main entry term, English
- arachno-borane
1, record 1, English, arachno%2Dborane
correct, see observation
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
K. Wade noted a relationship between the number of bonding electron pairs and the stoichiometry of boron hydride structures, which matched R.E. Williams' classification of the boranes into three main structural categories: Those clusters in which boron atoms occupy n vertices of an n-cornered closed polyhedron = closo-boranes (BnHn2-). Those whereupon boron atoms occupy n vertices of an (n+1)-cornered closed polyhedron = nido-boranes (BnHn+4). And those clusters in which boron atoms occupy n vertices of an (n+2)-cornered closed polyhedron = arachno-boranes (BnHn+6). 2, record 1, English, - arachno%2Dborane
Record number: 1, Textual support number: 2 CONT
Varied conditions yield a multitude of polyhedral boranes. ... Structures: - Closo-boranes (BnHn2-): (Greek "closo" = cage): Complete polyhedron. - Nido-boranes (BnHn4-: (Latin "nidus" = nest): Structures lack one vertex. - Arachno-boranes (BnHn6-: "Spiderweb" structures lacking two vertices. - Hypho-boranes (BnHn8-): "Net" structures lacking three vertices. - Conjuncto-boranes: "Joined subunit" structures, in which 2 or more of the above type are linked through a B-B or B-H-B bonds, or by a B atom. 3, record 1, English, - arachno%2Dborane
Record number: 1, Textual support number: 1 OBS
arachno-: An affix used in names to designate a boron structure intermediate between nido- and hypho-. 4, record 1, English, - arachno%2Dborane
Record number: 1, Textual support number: 2 OBS
boranes: The molecular hybrides of boron, e.g. B5H9 pentaborane(9). 4, record 1, English, - arachno%2Dborane
Record number: 1, Textual support number: 3 OBS
For example: the compound arachno-tetraborane(10) is an arachno-borane composed of 4 boron atoms and 10 hydrogen atoms; formally it may be derived from nido-pentaborane(9) by the substraction of a boron atom. 5, record 1, English, - arachno%2Dborane
Record number: 1, Textual support number: 4 OBS
An arachno-borane has a net-like structure 2). 5, record 1, English, - arachno%2Dborane
Record number: 1, Textual support number: 5 OBS
arachno-borane: The affix "arachno" must be italicized; form recommended by the IUPAC (International Union of Pure and Applied Chemistry). 5, record 1, English, - arachno%2Dborane
Record 1, Key term(s)
- arachnoborane
Record 1, French
Record 1, Domaine(s)
- Éléments et composés chimiques
Record 1, Main entry term, French
- arachno-borane
1, record 1, French, arachno%2Dborane
correct, see observation, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- arachnoborane 2, record 1, French, arachnoborane
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Le mot de borane désigne des hydrures de bore, ainsi que des composés organiques de formule générale BH3R~ résultant de la substitution d’un ou de plusieurs atomes d’hydrogène du borane le plus simple BH. [...] Le bore, élément très léger, se distingue par une grande aptitude à former des dérivés hydrogénés de structures très variées : les atomes de bore peuvent en effet former des assemblages triangulaires (closoboranes), des chaînes ayant l’aspect d’un nid (nidoboranes) ou d’une toile d’araignée (arachnoboranes), et des dimères que l’on nomme conjonctoboranes. 3, record 1, French, - arachno%2Dborane
Record number: 1, Textual support number: 1 OBS
arachno-: Affixe utilisé en nomenclature pour désigner une structure du bore qui, du point de vue de son ouverture, est intermédiaire entre nido-et hypho-. 4, record 1, French, - arachno%2Dborane
Record number: 1, Textual support number: 2 OBS
borane : Hydrure moléculaire du bore. Par exemple : B5H9 pentaborane(9). 4, record 1, French, - arachno%2Dborane
Record number: 1, Textual support number: 3 OBS
Par exemple : l’arachno-tétraborane(10) est un arachno-borane composé de 4 atomes de bore et 10 atomes d’hydrogène; on peut formellement le considérer comme un dérivé du nidopentaborane(9) formé par soustraction d’un atome de bore. 1, record 1, French, - arachno%2Dborane
Record number: 1, Textual support number: 4 OBS
Un arachno-borane a une structure en toile d’araignée 2). 1, record 1, French, - arachno%2Dborane
Record number: 1, Textual support number: 5 OBS
arachno-borane : L’affixe «arachno» s’écrit en italique; forme recommandée par l’UICPA (Union internationale de chimie pure et appliquée). 1, record 1, French, - arachno%2Dborane
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2003-10-29
Record 2, English
Record 2, Subject field(s)
- Chemical Elements and Compounds
- Chemistry
Record 2, Main entry term, English
- arachno-
1, record 2, English, arachno%2D
correct, prefix
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
An affix used in names to designate a boron structure intermediate between nido- and hypho-. 2, record 2, English, - arachno%2D
Record number: 2, Textual support number: 1 OBS
For example: the compound arachno-tetraborane(10) is an arachno-borane composed of 4 boron atoms and 10 hydrogen atoms; formally it may be derived from nido-pentaborane(9) by the substraction of a boron atom. 3, record 2, English, - arachno%2D
Record number: 2, Textual support number: 2 OBS
An arachno-borane has a net-like structure 2). 3, record 2, English, - arachno%2D
Record number: 2, Textual support number: 3 OBS
arachno-: must be italicized; form recommended by the IUPAC (International Union of Pure and Applied Chemistry). 3, record 2, English, - arachno%2D
Record 2, Key term(s)
- arachno
Record 2, French
Record 2, Domaine(s)
- Éléments et composés chimiques
- Chimie
Record 2, Main entry term, French
- arachno-
1, record 2, French, arachno%2D
correct, prefix
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Affixe utilisé en nomenclature pour désigner une structure du bore qui, du point de vue de son ouverture, est intermédiaire entre nido-et hypho-. 2, record 2, French, - arachno%2D
Record number: 2, Textual support number: 1 CONT
Le mot de borane désigne des hydrures de bore, ainsi que des composés organiques de formule générale BH3R~ résultant de la substitution d’un ou de plusieurs atomes d’hydrogène du borane le plus simple BH. [...] Le bore, élément très léger, se distingue par une grande aptitude à former des dérivés hydrogénés de structures très variées : les atomes de bore peuvent en effet former des assemblages triangulaires (closoboranes), des chaînes ayant l’aspect d’un nid (nidoboranes) ou d’une toile d’araignée (arachnoboranes), et des dimères que l’on nomme conjonctoboranes. 3, record 2, French, - arachno%2D
Record number: 2, Textual support number: 1 OBS
Par exemple : l’arachno-tétraborane(10) est un arachno-borane composé de 4 atomes de bore et 10 atomes d’hydrogène; on peut formellement le considérer comme un dérivé du nido-pentaborane(9) formé par soustraction d’un atome de bore. 4, record 2, French, - arachno%2D
Record number: 2, Textual support number: 2 OBS
Un arachno-borane a une structure en toile d’araignée 2). 4, record 2, French, - arachno%2D
Record number: 2, Textual support number: 3 OBS
arachno- : s’écrit en italique; forme recommandée par l’UICPA (Union internationale de chimie pure et appliquée). 4, record 2, French, - arachno%2D
Record 2, Key term(s)
- arachno
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2002-07-09
Record 3, English
Record 3, Subject field(s)
- Chemical Elements and Compounds
- Chemistry
Record 3, Main entry term, English
- hypho-
1, record 3, English, hypho%2D
correct, see observation, prefix
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
An affix used in names to designate an open structure, especially a boron skeleton, more closed than a klado structure but more open than an arachno structure. 2, record 3, English, - hypho%2D
Record number: 3, Textual support number: 1 OBS
For example: A hypho-borane has a net-like structure 2). 3, record 3, English, - hypho%2D
Record number: 3, Textual support number: 2 OBS
hypho-: must be italicized; form recommended by the IUPAC (International Union of Pure and Applied Chemistry). 3, record 3, English, - hypho%2D
Record 3, Key term(s)
- hypho
Record 3, French
Record 3, Domaine(s)
- Éléments et composés chimiques
- Chimie
Record 3, Main entry term, French
- hypho-
1, record 3, French, hypho%2D
correct, see observation, prefix
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Affixe utilisé en nomenclature pour désigner une structure ouverte, principalement un squelette de bore, qui est plus fermée qu’une structure klado mais plus ouverte qu’une structure arachno. 2, record 3, French, - hypho%2D
Record number: 3, Textual support number: 1 OBS
Par exemple : un hypho-borane a une structure en réseau 2). 3, record 3, French, - hypho%2D
Record number: 3, Textual support number: 2 OBS
hypho-: s’écrit en italique; forme recommandée par l'UICPA(Union internationale de chimie pure et appliquée). 3, record 3, French, - hypho%2D
Record 3, Key term(s)
- hypho
Record 3, Spanish
Record 3, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.
- Date Modified: