*coma*

n. 1. an ascocarp having the spore-bearing layer of cells (the hymenium) on a broad disklike receptacle. [ WordNet 1.5 ]

‖n. [ NL., fr. Gr. kw^ma lethargy, fr. koima^n to put to sleep. See Cemetery. ] A state of profound insensibility from which it is difficult or impossible to rouse a person. See Carus. [ 1913 Webster ]

‖ n. [ L., hair, fr. Gr. ko`mh. ] 1. (Astron.) The envelope of a comet; a nebulous covering, which surrounds the nucleus or body of a comet. [ 1913 Webster ]

2. (Bot.) 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. [ 1913 Webster ]

Coma Berenices ety>[ L. ] (Astron.), a small constellation north of Virgo; -- called also Berenice's Hair. [ 1913 Webster ]

n. pl.; sing. Comanche /sing>. (Ethnol.) A warlike, savage, and nomadic tribe of the Shoshone family of Indians, inhabiting Mexico and the adjacent parts of the United States; -- called also Paducahs. They are noted for plundering and cruelty. [ 1913 Webster ]

n. small genus of chiefly North American parasitic plants.
Syn. -- genus Comandra. [ WordNet 1.5 ]

n. A covenant. [ Obs. ] Shak. [ 1913 Webster ]

a. [ L. comatus, fr. comare to clothe with hair, fr. coma hair. ] Encompassed with a coma, or bushy appearance, like hair; hairy. [ 1913 Webster ]

a. [ From Coma lethargy. ] Relating to, or resembling, coma; drowsy; lethargic; as, comatose sleep; comatose fever. [ 1913 Webster ]

a. Comatose. [ 1913 Webster ]

‖n. [ NL., fr. L. comatulus having hair neatly curled, dim. fr. coma hair. ] (Zool.) A crinoid of the genus Antedon and related genera. When young they are fixed by a stem. When adult they become detached and cling to seaweeds, etc., by their dorsal cirri; -- called also feather stars. [ 1913 Webster ]

n. (Zool.) Any crinoid of the genus Antedon or allied genera. [ 1913 Webster ]

{ } n. [ F. décalcomanie. ] The art or process of transferring pictures and designs to china, glass, marble, etc., and permanently fixing them thereto.

‖n. [ L., fr. Gr. glay`kwma, fr. glayko`s light gray, blue gray. ] (Med.) Dimness or abolition of sight, with a diminution of transparency, a bluish or greenish tinge of the refracting media of the eye, and a hard inelastic condition of the eyeball, with marked increase of tension within the eyeball. [ 1913 Webster ]

a. Having the nature of glaucoma. [ 1913 Webster ]

‖n. [ NL., fr. Gr. ley`kwma, fr. leyko`s white. ] (Med.) A white opacity in the cornea of the eye; -- called also albugo. [ 1913 Webster ]

n. [ Leuco- + -maine, as in ptomaine. ] (Physiol. Chem.) An animal base or alkaloid, appearing in the tissue during life; hence, a vital alkaloid, as distinguished from a ptomaine or cadaveric poison. [ 1913 Webster ]

n. [ Music + mania: cf. F. musicomanie. ] (Med.) A kind of monomania in which the passion for music becomes so strong as to derange the intellectual faculties. Dunglison. [ 1913 Webster ]

‖n.; pl. Osteosarcomata [ NL. See Osteo-, and sarcoma. ] (Med.) A tumor having the structure of a sarcoma in which there is a deposit of bone; sarcoma connected with bone. [ 1913 Webster ]

n. [ Gr. fa`rmakon a drug + manqa`nein to learn. ] See Pharmacognosis. [ 1913 Webster ]

‖n. [ NL., fr. Gr. fy^kos seaweed + L. mater mother. ] (Bot.) A gelatin in which the algae spores have been supposed to vegetate. [ 1913 Webster ]

‖n.; pl. L. Sarcomata E. sarcomas [ NL., from Gr. &unr_;, from sa`rx, sa`rkos, flesh. ] (Med.) A tumor of fleshy consistence; -- formerly applied to many varieties of tumor, now restricted to a variety of malignant growth made up of cells resembling those of fetal development without any proper intercellular substance. [ 1913 Webster ]

a. (Med.) Of or pertaining to sarcoma; resembling sarcoma. [ 1913 Webster ]

n. [ See. Toxic, and Mania. ] 1. (Med.) Toxiphobia. A. S. Taylor. [ 1913 Webster ]

2. (Med.) An insane desire for intoxicating or poisonous drugs, as alcohol or opium. B. W. Richardson. [ 1913 Webster ]