名複: diameters
n.[C]
- 直徑
- 倍(透鏡等的放大單位)
衍生
a.
diametral
辨析
以上來源於:《英漢大辭典》
/dʌɪˈamɪtə/
n.
- a straight line passing from side to side through the centre of a body or figure, especially a circle or sphere. ▸a transverse measurement of something; width or thickness.
- a unit of linear measurement of magnifying power.
Derivative
- diametral adj.
Etymology
ME: from OFr. diametre, via L. from Gk diametros (grammē) ‘(line) measuring across’.
以上來源於:《簡明牛津英語詞典》