*toco*

n. 1. any physiologically active internal secretion, especially one of uncertain classification.
Syn. -- autacoid. [ WordNet 1.5 ]

n. [ Gr. blasto`s sprout + koi^los hollow. ] (Biol.) The cavity inside a blastula; -- also called segmentation cavity. [ 1913 Webster ]

adj. of or pertaining to a blastocoel. [ WordNet 1.5 ]

n. any plant of the genus Cryptocoryne; evergreen perennials growing in fresh or brackish water; tropical Asia.
Syn. -- water trumpet. [ WordNet 1.5 ]

n.; pl. Cytococci [ NL., fr. Gr. ky`tos hollow vessel + &unr_;&unr_;&unr_;&unr_; kernel. ] (Biol.) The nucleus of the cytula or parent cell. Hæckel. [ 1913 Webster ]

a. [ NL. Embiotoca, the name of one genus + -oid. ] (Zoöl.) Belonging to, or resembling, the Embiotocidæ. -- n. One of a family of fishes (Embiotocidæ) abundant on the coast of California, remarkable for being viviparous; -- also called surf fish and viviparous fish. See Illust. in Appendix. [ 1913 Webster ]

a. (Zool.) Changed into a hectocotylus; having a hectocotylis. [ 1913 Webster ]

‖n.; pl. Hectocotyli [ NL., fr. Gr. &unr_; a hundred + &unr_; a hollow vessel. ] (Zool.) One of the arms of the male of most kinds of cephalopods, which is specially modified in various ways to effect the fertilization of the eggs. In a special sense, the greatly modified arm of Argonauta and allied genera, which, after receiving the spermatophores, becomes detached from the male, and attaches itself to the female for reproductive purposes. [ 1913 Webster ]

a. [ Mono- + Gr. &unr_; birth, offspring. ] 1. (Bot.) Bearing fruit but once; monocarpic. [ 1913 Webster ]

2. (Zool.) Uniparous; laying a single egg. [ 1913 Webster ]

{ } n. [ Gr. &unr_; laying eggs (&unr_; egg + &unr_; a bearing, ti`ktein to bear) + -oid. ] (Zool.) A half oviparous, or an oviparous, mammal; a marsupial or monotreme. [ 1913 Webster ]

{ ‖ } n. [ NL. optocoelia, fr. Gr. &unr_; optic + koi^los a hollow. ] (Anat.) The cavity of one of the optic lobes of the brain in many animals. B. G. Wilder. [ 1913 Webster ]

n. [ Oto- + Gr. &unr_; dust. ] (Anat.) (a) A mass of otoliths. (b) An otolith. [ 1913 Webster ]

a. [ Gr. &unr_;; poly`s many + &unr_; offspring. ] 1. (Bot.) Bearing fruit repeatedly, as most perennial plants; polycarpic. [ 1913 Webster ]

2. (Zool.) Producing many or young. [ 1913 Webster ]

‖n. [ NL. See Proto-, and Coccus. ] (Bot.) A genus of minute unicellular algæ including the red snow plant (Protococcus nivalis). [ 1913 Webster ]

v. i. To make or write protocols, or first draughts; to issue protocols. Carlyle. [ 1913 Webster ]

n. [ F. protocole, LL. protocollum, fr. Gr. &unr_; the first leaf glued to the rolls of papyrus and the notarial documents, on which the date was written; prw^tos the first (see Proto-) + &unr_; glue. ] 1. The original copy of any writing, as of a deed, treaty, dispatch, or other instrument. Burrill. [ 1913 Webster ]

2. The minutes, or rough draught, of an instrument or transaction. [ 1913 Webster ]

3. (Diplomacy) (a) A preliminary document upon the basis of which negotiations are carried on. (b) A convention not formally ratified. (c) An agreement of diplomatists indicating the results reached by them at a particular stage of a negotiation. [ 1913 Webster ]

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v. t. To make a protocol of. [ 1913 Webster ]

n. One who draughts protocols. [ 1913 Webster ]

n. [ Proto- + conch. ] (Zool.) The embryonic shell, or first chamber, of ammonites and other cephalopods. [ 1913 Webster ]

‖n.; pl. Streptococci [ NL., fr. Gr. &unr_; pliant, curved + &unr_; a grain, seed. ] (Biol.) A long or short chain of micrococci, more or less curved. [ 1913 Webster ]

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n. (Zool.) A toucan (Ramphastos toco) having a very large beak. See Illust. under Toucan. [ 1913 Webster ]

n. [ Gr. &unr_; a birth + -logy. ] The science of obstetrics, or midwifery; that department of medicine which treats of parturition. [ Written also tokology. ] [ 1913 Webster ]