TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

Said of a chemical structure presenting one atom (usually a quaternary carbon) as the only member of two rings.  2, record 1, English, - spiro%2Dfused

Record number: 1, Textual support number: 1 CONT

When three or more components are spiro-fused to the same component the ring system is described as a branched spiro-fused ring system. Terminal components have only one spiro atom.  3, record 1, English, - spiro%2Dfused

Record number: 1, Textual support number: 2 CONT

The nomenclature and name spirane were proposed by von Baeyer ... for bicyclic compounds with only one atom common to both rings. When a polycyclic ring system is spiro-fused to another ring or ring system Radulescu ... recognised that each ring system needed to be named separately and, in addition, details of the spiro-fusion must be specified.  4, record 1, English, - spiro%2Dfused

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Se dit d'une structure chimique qui présente un atome (généralement un carbone quaternaire) commun à deux ou à plusieurs cycles.  1, record 1, French, - spiro%2Dfusionn%C3%A9

Record 1,  Textual support,  Spanish