torus

torus
[ˈtɔːrəs]
(pl. tori -rʌɪ 或 toruses)

(Geometry)a surface or solid formed by rotating a closed curve, especially a circle, about a line which lies in the same plane but does not intersect it (e.g. like a ring doughnut)
(几何)环形圆纹曲面，环面，锚环
■a thing of this shape , especially a large ring-shaped chamber used in physical research
环形物（尤指开展物理研究的大型环形室）
(Architecture)a large convex moulding, typically semicircular in cross section, especially as the lowest part of the base of a column
(建筑)环状半圆线脚装饰；柱脚圆盘线脚
(Anatomy)a ridge of bone or muscle
(剖)隆凸，圆枕
the maxillary torus.
上颌隆凸。
(Botany)the receptacle of a flower
(植)花托

语源

mid 16th cent. (in sense 2): from Latin, literally swelling, bolster, round moulding'. The other senses date from the 19th cent

热门查询

考试词汇表