coma汉语翻译：
n. 昏迷, 麻木, 彗发
【化】 彗差; 彗形像差
【医】 昏迷; 斜射球面象差词型变化：
名词复数:comas形容词:comal英语解释：
名词 coma:

a state of deep and often prolonged unconsciousness; usually the result of disease or injury同义词：comatoseness

a usually terminal tuft of hairs especially on a seed

(astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed

例句：

After a long coma the sick man slowly came back.昏睡了好久以后，那个病人慢慢地恢复了活力。

The girl went into a coma after the car accident three months ago, and has not woken up yet.3个月前，汽车出事故以后，这个姑娘就昏迷过去了，至今还没有苏醒过来。

She lapsed into a coma.她逐渐陷入昏迷状态。

He was in a coma for days, but now he's (fully) conscious again.他昏迷了几天，但现在又(完全)清醒了。

详细解释：
coma
n.（名词）
【复数】 co.mas
A state of deep, often prolonged unconsciousness, usually the result of injury, disease, or poison, in which an inpidual is incapable of sensing or responding to external stimuli and internal needs.
昏迷：一种很深且通常是持续的失去知觉的状态，常因受伤、疾病或中毒引起，在昏迷中的人不能感觉且对外界刺激或内部需求没有反应
来源：
Greek kôma [deep sleep]
希腊语 kôma [沉睡] coma
coma 2
n.（名词）
【复数】 co.mae[-mô]
Astronomy The nebulous, luminescent cloud containing the nucleus and constituting the major portion of the head of a comet.
【天文学】 彗发：星云状的发光云体包括彗核、彗星头部的重要部分
Botany A usually terminal tuft or cluster, especially a tuft of hairs on a seed, as on a willow or milkseed.
【植物学】 种毛：在某些树木如柳树或乳草种子上的一簇毛
Physics A diffuse, pear-shaped image of a point source.
【物理学】 基于一点呈散开的、梨状的一种表现形式
来源：
Latin [hair]
拉丁语 [头发]
from Greek komô
源自 希腊语 komô
【引伸】
co.mal
adj.（形容词）

coma