comas
名词 coma:
a state of deep and often prolonged unconsciousness; usually the result of disease or injury
同义词:coma, comatoseness
a usually terminal tuft of hairs especially on a seed
同义词:coma
(astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed
同义词:coma