TERMIUM Plus®

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ROOT PASS [3 records]

Record 1 2024-08-27

English

Subject field(s)
  • Morphology and General Physiology
  • Bones and Joints
  • The Mouth
Universal entry(ies)
DEF

... the small opening at the apex of a tooth root through which nerves and blood vessels pass.

OBS

apical foramen; foramen apicis radicis dentis: designations found in the Terminologia Anatomica.

French

Domaine(s)
  • Morphologie et physiologie générale
  • Os et articulations
  • Cavité buccale
Entrée(s) universelle(s)
CONT

Au niveau de l'apex, situé à l'extrémité de la racine, subsiste un orifice, le foramen apical, par lequel arrivent les éléments assurant la vascularisation et l'innervation du tissu.

OBS

foramen apical : désignation dérivée de la Terminologia Anatomica.

OBS

foramen apicis radicis dentis : désignation tirée de la Terminologia Anatomica.

Spanish

Save record 1

Record 2 2010-12-09

English

Subject field(s)
  • Welding and Soldering (Metals)
  • Nuclear Fission Reactors
DEF

A defect triggered in the root pass of a weld in the immediate neighbourhood of the contact zone, and which spreads radially between the grains when under stress in service.

OBS

[Delayed re-heat cracking] only occurs with certain materials such as 321 type stainless steel, as it is caused by hardening of the steel due to fine precipitations of titanium carbide inside the crystalline structure. The hardening causes the plastic deformation capacity to be transferred to the periphery of the grains. For this to happen, the following conditions have to be met: a high operating temperature ([higher than] 475°C for 321 steel), a geometrical discontinuity at the weld root, strain hardening at the weld root showing significant shrinkage, heavy local load, which may be due to welding stresses, a defect in the weld root (e.g. a small shrinkage crack).

Key term(s)
  • delayed reheat cracking

French

Domaine(s)
  • Soudage (Métal)
  • Réacteurs nucléaires de fission

Spanish

Save record 2

Record 3 1996-04-09

English

Subject field(s)
  • Hydrology and Hydrography
DEF

Fraction of the water entering the soil that must pass through the root zone in order to prevent soil salinity from exceeding a specified value. Leaching requirement is used primarily under steady state or long-time average conditions.

French

Domaine(s)
  • Hydrologie et hydrographie
DEF

Quantité d'eau d'infiltration qui doit traverser la zone des racines pour maintenir la concentration en sels dissous en dessous d'un certain seuil. Cette notion est utile principalement dans des conditions d'état permanent ou pour des conditions moyennes sur une longue durée.

Spanish

Campo(s) temático(s)
  • Hidrología e hidrografía
DEF

Porción del agua que entra en el suelo que debe pasar a través de la zona de raíces para evitar que la salinidad del suelo exceda un valor determinado. La demanda de lixivación se usa principalmente en condiciones permanentes o medias a largo plazo.

Save record 3

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