1
- the upper or outer edge of an object, typically something circular or approximately circular（尤指圆形或近似圆形物的）边, 缘, 边缘：
a china egg cup with a gold rim.
带金边的瓷质蛋杯。
1.1
- （亦作wheel rim）the outer edge of a wheel, on which the tyre is fitted（车轮的）轮辋。
1.2
- （常作rims）the part of a spectacle frame surrounding the lenses眼镜框。
1.3
- a limit or boundary of something界, 边界：
the outer rim of the solar system.
太阳系的外缘。
1.4
- an encircling stain or deposit（一圈）污物（或积垢）：
a thick rim of suds.
一圈厚厚的肥皂泡沫。
(rimmed, rimming)with obj.
1- form or act as an outer edge or rim for形成（或成为）…的边缘：
a huge lake rimmed by glaciers
被冰河围起的大湖
as adj., in combination -rimmed steel-rimmed glasses.钢边眼镜。
1.1
- （一般作be rimmed）mark with an encircling stain or deposit沾有一圈污渍（或积垢）：
his collar was rimmed with dirt.
他的领子有一圈污垢。
派生词
rimless
adjective词源
Old English rima 'a border, coast'; compare with Old Norse rimi 'ridge, strip of land' (the only known cognate).