coma

nounA1

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Danh từ

noun

Plural noun:

comascomae

1.
A state of unconsciousness from which one may not wake up, usually induced by some form of trauma.
go into a coma
slip into a coma
come out of a coma
2.
(astronomy) A cloud of dust surrounding the nucleus of a comet.
3.
(optics) A defect characterized by diffuse, pear-shaped images that in an ideal image would appear as points.
4.
(botany) 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.

Từ liên quan

Cùng gốc / liên quan

comatosepersistent vegetative statebrain death

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Nguồn gốc từ

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