Part 440

Gas*tros"to*my (?), n. [Gastro- + Gr. &?; mouth.] (Surg.) The operation of making a permanent opening into the stomach, for the introduction of food.

Gas*trot"o*my (?), n. [Gastro + Gr. &?; to cut: cf. F. gastrotomie.] (Surg.) A cutting into, or opening of, the abdomen or the stomach.

||Gas*trot"ri*cha (?), n. pl., [NL., fr. Gr. &?; belly + &?;, &?;, ||hair.] (Zoˆl.) A group of small wormlike animals, having cilia on the ||ventral side. The group is regarded as an ancestral or synthetic one, ||related to rotifers and annelids.

||Gas*trot"ro*cha (?), n. [NL., fr. Gr. &?;, &?;, stomach + &?; a ||wheel.] (Zoˆl.) A form of annelid larva having cilia on the ventral ||side.

Gas`tro*vas"cu*lar (?), a. [Gastro- + -vascular.] (Zoˆl.) Having the structure, or performing the functions, both of digestive and circulatory organs; as, the gastrovascular cavity of cúlenterates.

||Gas"tru*la (?), n.; pl. GastrulÊ (#) [NL., dim. fr. Gr. &?; the ||stomach.] (Biol.) An embryonic form having its origin in the ||invagination or pushing in of the wall of the planula or blastula ||(the blastosphere) on one side, thus giving rise to a double- walled ||sac, with one opening or mouth (the blastopore) which leads into the ||cavity (the archenteron) lined by the inner wall (the hypoblast). See ||Illust. under Invagination. In a more general sense, an ideal stage ||in embryonic development. See GastrÊa. -- a. Of or pertaining to a ||gastrula.

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Gas`tru*la"tion (gs`tr*l"shn), n. (Biol.) The process of invagination, in embryonic development, by which a gastrula is formed.

||Gas*tru"ra (gs*tr"r), n. pl. [NL., fr. Gr. gasth`r belly + o'yra` ||tail.] (Zoˆl.) See Stomatopoda.

Gas*tru"rous (-rs), a. (Zoˆl.) Pertaining to the Gastrura.

Gat (gt), imp. of Get. [Obs.]

Gate (gt), n. [OE. et, eat, giat, gate, door, AS. geat, gat, gate, door; akin to OS., D., & Icel. gat opening, hole, and perh. to E. gate a way, gait, and get, v. Cf. Gate a way, 3d Get.] 1. A large door or passageway in the wall of a city, of an inclosed field or place, or of a grand edifice, etc.; also, the movable structure of timber, metal, etc., by which the passage can be closed.

2. An opening for passage in any inclosing wall, fence, or barrier; or the suspended framework which closes or opens a passage. Also, figuratively, a means or way of entrance or of exit.

Knowest thou the way to Dover? Both stile and gate, horse way and footpath.

Shak.

Opening a gate for a long war.

Knolles.

3. A door, valve, or other device, for stopping the passage of water through a dam, lock, pipe, etc.

4. (Script.) The places which command the entrances or access; hence, place of vantage; power; might.

The gates of hell shall not prevail against it.

Matt. xvi. 18.

5. In a lock tumbler, the opening for the stump of the bolt to pass through or into.

6. (Founding) (a) The channel or opening through which metal is poured into the mold; the ingate. (b) The waste piece of metal cast in the opening; a sprue or sullage piece. [Written also geat and git.]

Gate chamber, a recess in the side wall of a canal lock, which receives the opened gate. -- Gate channel. See Gate, 5. -- Gate hook, the hook-formed piece of a gate hinge. -- Gate money, entrance money for admission to an inclosure. -- Gate tender, one in charge of a gate, as at a railroad crossing. -- Gate valva, a stop valve for a pipe, having a sliding gate which affords a straight passageway when open. -- Gate vein (Anat.), the portal vein. -- To break gates (Eng. Univ.), to enter a college inclosure after the hour to which a student has been restricted. -- To stand in the gate, or gates, to occupy places or advantage, power, or defense.

Gate, v. t. 1. To supply with a gate.

2. (Eng. Univ.) To punish by requiring to be within the gates at an earlier hour than usual.

Gate, n. [Icel. gata; akin to SW. gata street, lane, Dan. gade, Goth. gatwˆ, G. gasse. Cf. Gate a door, Gait.] 1. A way; a path; a road; a street (as in Highgate). [O. Eng. & Scot.]

I was going to be an honest man; but the devil has this very day flung first a lawyer, and then a woman, in my gate.