coma

名词 n.
中文释义
英 /ˈkəʊmə/    美 /ˈkoʊmə/

英文释义

名词 n.
  1. A state of unconsciousness from which one may not wake up, usually induced by some form of trauma.
    — go into a coma
  2. A cloud of dust surrounding the nucleus of a comet.
  3. A defect characterized by diffuse, pear-shaped images that in an ideal image would appear as points.
  4. A tuft or bunch, such as the assemblage of branches forming the head of a tree, a cluster of bracts when empty and terminating the inflorescence of a plant, or a tuft of long hairs on certain seeds.

词形变化

comas plural comae plural

词源

词源 1
Learned borrowing from Ancient Greek κῶμα (kôma, “deep sleep”).
词源 2
Learned borrowing from Latin coma (“hair of the head”), from Ancient Greek κόμη (kómē, “hair”).
0 次浏览 数据来源: Wiktionary