noun. In botany: The leafy head of a tree, or a cluster of leaves terminating a stem, as the leafy top of a pineapple.

noun. The silky hairs at the end of some seeds, as of the willow-herb, Epilobium.

noun. In astronomy, the nebulous hair-like envelop surrounding the nucleus of a comet.

noun. In microscopy, the hazy fringe on the outline of a microscopic object seen when the lens is not free from spherical aberration.

noun. In pathology, a state of prolonged unconsciousness some what resembling sleep, from which the patient cannot be aroused, or can be aroused only partially, temporarily, and with difficulty; stupor.

noun. A state of profound insensibility from which it is difficult or impossible to rouse a person. See carus.

noun. The envelope of a comet; a nebulous covering, which surrounds the nucleus or body of a comet.

noun. A tuft or bunch, -- as the assemblage of branches forming the head of a tree; or a cluster of bracts when empty and terminating the inflorescence of a plant; or a tuft of long hairs on certain seeds.

noun. a small constellation north of Virgo; -- called also Berenice's Hair.

noun. A state of sleep from which one may not wake up, usually induced by some form of trauma.

noun. A cloud of dust surrounding the nucleus of a comet

noun. A defect characterized by diffuse, pear-shaped images that should be points

noun. 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.

noun. a state of deep and often prolonged unconsciousness; usually the result of disease or injury

noun. (botany) a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds)

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

"Second, a person in a coma is alive, but unconscious."

Coma Berenices  coma vigil  diabetic coma  fulminating coma  uremic coma  

cloud  tuft  tussock  

Oklahoma  Roma  Soma  Sonoma  Tacoma  

arrhythmia  convulsion  delirium  dementia  diarrhea  

KO  blackout  catalepsy  catatonia  catatony  

carus  comae