a. [ Gr. 'akro`tomos cut off sharp; 'a`kros extreme + te`mnein to cut. ] (Min.) Having a cleavage parallel with the base. [ 1913 Webster ]

a. (Bot.) Having the filaments of the stamens divided into two parts. [ 1913 Webster ]

n. [ Gr. 'anh`r, 'andro`s, man + &unr_; a cutting. Cf. Anatomy. ] Dissection of the human body, as distinguished from zoötomy; anthropotomy. [ R. ] [ 1913 Webster ]

‖n. [ NL., fr. Gr. &unr_; up + E. electrotonus. ] (Physiol.) The condition of decreased irritability of a nerve in the region of the positive electrode or anode on the passage of a current of electricity through it. Foster. [ 1913 Webster ]

n. [ Aponeurosis + Gr. &unr_; a cutting. ] Dissection of aponeuroses. [ 1913 Webster ]

n. [ Gr. &unr_; joint + &unr_; to cut. ] (Surg.) A strong scalpel used in the dissection of joints. [ Webster 1913 Suppl. ]

a. (Physics) Relating to, or characterized by, catelectrotonus. [ 1913 Webster ]

‖n. [ NL., fr. Gr. &unr_; down + &unr_; (see Electro-) + &unr_; tone. ] (Physics) The condition of increased irritability of a nerve in the region of the cathode or negative electrode, on the passage of a current of electricity through it. [ 1913 Webster ]

n. [ Gr. &unr_; + &unr_; a cutting. ] (Anat.) The dissection of cartilages. [ 1913 Webster ]

n. [ Gr. &unr_;&unr_;&unr_;&unr_;, prop., a tick, which the seed of the croton resembles. ] (Bot.) A genus of euphorbiaceous plants belonging to tropical countries. [ 1913 Webster ]

Croton oil (Med.), a viscid, acrid, brownish yellow oil obtained from the seeds of Croton Tiglium, a small tree of the East Indies. It is a most powerful drastic cathartic, and is used externally as a pustulant. [ 1913 Webster ]

[ From the Croton water of New York. ] (Zool.) A small, active, winged species of cockroach (Ectobia Germanica), the water bug. It is common aboard ships, and in houses in cities, esp. in those with hot-water pipes; -- called also the German cockroach. [ 1913 Webster +PJC ]

a. Of or pertaining to, or derived from, a plant of the genus Croton, or from croton oil. [ 1913 Webster ]

Crotonic acid (Chem.), a white crystalline organic acid, C3H5.CO2H, of the ethylene, or acrylic acid series. It was so named because formerly supposed to exist in croton oil. Also, any acid metameric with crotonic acid proper. [ 1913 Webster ]

☞ The acid characteristic of croton oil is tiglic or tiglinic acid, a derivative of crotonic acid. [ 1913 Webster ]

n. (Chem.) A supposed alkaloid obtained from croton oil by boiling it with water and magnesia, since found to be merely a magnesia soap of the oil. Watts. [ 1913 Webster ]

n. [ Crotonic + acet-ylene. ] (Chem.) A colorless, volatile, pungent liquid, C4H6, produced artificially, and regarded as an unsaturated hydrocarbon of the acetylene series, and analogous to crotonic acid. [ 1913 Webster ]

n. a genus of birds including the anis. See ani.
Syn. -- genus Crotophaga. [ WordNet 1.5 ]

{ } a. [ Gr. &unr_; a double beating. ] Dicrotic. [ 1913 Webster ]

‖n. [ Gr. di- = di`s- twice + &unr_; first + 'odoy`s, 'odo`ntos, tooth. ] (Paleon.) An extinct Quaternary marsupial from Australia, about as large as the hippopotamus; -- so named because of its two large front teeth. See Illustration in Appendix. [ 1913 Webster ]

a. 1. (Physics) Of or pertaining to electrical tension; -- said of a supposed peculiar condition of a conducting circuit during its exposure to the action of another conducting circuit traversed by a uniform electric current when both circuits remain stationary. Faraday. [ 1913 Webster ]

2. (Physiol.) Relating to electrotonus; as, the electrotonic condition of a nerve. [ 1913 Webster ]

v. t. (Physiol.) To cause or produce electrotonus. [ 1913 Webster ]

a. Electrotonic. [ 1913 Webster ]

‖n. [ NL., fr. combining form electro- + Gr. &unr_; tension. ] (Physiol.) The modified condition of a nerve, when a constant current of electricity passes through any part of it. See Anelectrotonus, and Catelectrotonus. [ 1913 Webster ]

n. [ F. entérotome. See Enterotomy. ] (Med.) A kind of scissors used for opening the intestinal canal, as in post-mortem examinations. [ 1913 Webster ]

n. [ Gr. 'e`nteron an intestine + te`mnein to cut. ] (Med.) Incision of the intestines, especially in reducing certain cases of hernia. [ 1913 Webster ]

n. [ Gastro- + Gr &unr_; sheath + &unr_; a cutting ] (Surg.) The operation of cutting into the upper part of the vagina, through the abdomen (without opening the peritoneum), for the purpose of removing a fetus. It is a substitute for the Cæsarean operation, and less dangerous. [ 1913 Webster ]

n. [ Gastro- + Gr. &unr_; womb + &unr_; to cut. ] (Surg.) Cæsarean section. See under Cæsarean. [ 1913 Webster ]

n. [ Gastro + Gr. &unr_; to cut: cf. F. gastrotomie. ] (Surg.) A cutting into, or opening of, the abdomen or the stomach. [ 1913 Webster ]

{ } n. [ Hetero- + Gr. &unr_; place: cf. F. hétérotopie. ] 1. (Med.) A deviation from the natural position; -- a term applied in the case of organs or growths which are abnormal in situation. [ 1913 Webster ]

2. (Biol.) A deviation from the natural position of parts, supposed to be effected in thousands of years, by the gradual displacement of germ cells. [ 1913 Webster ]

a. (Physiol.) Hyperdicrotic. [ 1913 Webster ]

{ } a. (Physiol.) Exhibiting retarded dicrotism; as, a hypodicrotic pulse curve. [ 1913 Webster ]

n. [ Gr. "yste`ra womb + te`mnein to cut: cf. F. hystérotomie.] (Med.) The act of cutting into the uterus, as in Cæsarean section. See under Cæsarean. [1913 Webster]

n. [ Gr. &unr_; loins + te`mnein to cut. ] (Surg.) A cutting through the walls of the abdomen, as in the Caesarean section. [ 1913 Webster ]

n. [ Gr. &unr_; stretched out. See Macro-, and Tone. ] (Pron.) Same as Macron. [ 1913 Webster ]

a. [ Macro- + Gr. o"y^s, gen. 'wto`s, the ear.] (Zool.) Large-eared. [1913 Webster]

n. (Aviation) The assembly of large rotating airfoils (blades) on a helicopter that produce the lift to support the helicopter in the air. [ WordNet 1.5 ]

n. [ See Metrotomy. ] (Surg.) An instrument for cutting or scarifying the uterus or the neck of the uterus. [ 1913 Webster ]

n. [ Gr. &unr_; womb + &unr_; to cut: cf. F. métrotomie. ] (Surg.) The operation of cutting into the uterus; hysterotomy; the Caesarean section. [ 1913 Webster ]

n. [ Micro- + Gr. te`mnein to cut. ] An instrument for making very thin sections for microscopical examination. [ 1913 Webster ]

{ , a. Of or pert. to the microtome or microtomy; cutting thin slices. [ Webster 1913 Suppl. ]

n. One who is skilled in or practices microtomy. [ 1913 Webster ]

n. The art of using the microtome; investigation carried on with the microtome. [ 1913 Webster ]

n. [ Gr. nekro`s dead person + te`mnein to cut. ] (Med.) The dissection of dead bodies; also, excision of necrosed bone. -- Nec`ro*tom"ic a. -- Nec*rot"o*mist n. [ Webster 1913 Suppl. ]

n. [ Gr. nefro`s a kidney + te`mnein to cut: cf. F. néphrotomie. ] (Surg.) Extraction of stone from the kidney by cutting. [ 1913 Webster ]

n. [ See Neurotomy. ] 1. An instrument for cutting or dissecting nerves. [ 1913 Webster ]

2. (Anat.) A neuromere. [ 1913 Webster ]

a. Of or pertaining to neurotomy. [ 1913 Webster ]

n. One who skilled in or practices neurotomy. [ 1913 Webster ]

n. [ Neuro- + Gr. te`mnein to cut. ] 1. The dissection, or anatomy, of the nervous system. [ 1913 Webster ]

2. (Med.) The division of a nerve, for the relief of neuralgia, or for other purposes. Dunglison. [ 1913 Webster ]

a. [ Parotid + -oid. ] (Anat.) Resembling the parotid gland; -- applied especially to cutaneous glandular elevations above the ear in many toads and frogs. -- n. A parotoid gland. [ 1913 Webster ]

n. [ Gr. &unr_; bitter + toxic + -in. ] (Chem.) A bitter white crystalline substance found in the cocculus indicus. It is a peculiar poisonous neurotic and intoxicant, and consists of a mixture of several neutral substances. [ 1913 Webster ]

‖n.; pl. L. Pleurotomæ E. Pleurotomas [ NL., fr. Gr. &unr_; the side + tomh` a cut. ] (Zool.) Any marine gastropod belonging to Pleurotoma, and ether allied genera of the family Pleurotmidæ. The species are very numerous, especially in tropical seas. The outer lip has usually a posterior notch or slit. [ 1913 Webster ]

‖n. pl. [ NL., fr. Gr. poly`s many + &unr_; first + &unr_;, &unr_;, tooth. ] (Zool.) A division of marsupials in which there are more fore incisor teeth in each jaw. [ 1913 Webster ]