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A ventral canal or groove, in which the males of some dioecious trematodes carry the female. See Illust. of Hæmatozoa.

A convoluted ridge between grooves; a convolution; as, the gyri of the brain; the gyri of brain coral. See Brain.

The half channel or groove in the edge of the triglyph in the Doric order.

st if set or cut in the increase of the moon. Bacon. Increase twist, the twixt of a rifle groove in which the angle of twist increases from the breech to the muzzle.

ugle. -- Key of a position or country. (Mil.) See Key, 4. -- Key seat (Mach.), a bed or groove to receive a key which prevents one part from turning on the other. -- Key way, a channel for a key, in the hole of a piece which is keyed to a shaft; an internal key seat; -- called also key seat. -- Key wrench (Mach.),…

A gutter, groove, or channel.

lettuce.] -- Lamb's tongue, a carpenter's plane with a deep narrow bit, for making curved grooves. Knight. -- Lamb's wool. (a) The wool of a lamb. (b) Ale mixed with the pulp of roasted apples; -- probably from the resemblance of the pulp of roasted apples to lamb's wool. [Obs.] Goldsmith.

In any surface prepared with indentations, perforations, or grooves, that part of the surface which is not so treated, as the level part of a millstone between the furrows, or the surface of the bore of a rifled gun between the grooves. Land agent, a person employed to sell or let land, to collect rents, and to attend…

To cover, fill, or affect with lead; as, continuous firing leads the grooves of a rifle.

A tool somewhat like a chisel with a groove in it, used by calkers of ships to finish the seams after the oakum has been driven in.

Female. -- Male screw (Mech.), a screw having threads upon its exterior which enter the grooves upon the inside of a corresponding nut or female screw. -- Male thread, the thread of a male screw.

ocephalus, or Papio, mormon). The adult male has, on the sides of the nose, large, naked, grooved swellings, conspicuously striped with blue and red.

ion, by means of a rack and pinion, as in the mangle. The pinion is held to the rack by a groove in such a manner that it passes alternately from one side of the rack to the other, and thus gives motion to it in opposite directions, according to the side in which its teeth are engaged. -- Mangle wheel, a wheel in whic…

een the parts of the mold. Match boarding (Carp.), boards fitted together with tongue and groove, or prepared to be so fitted. -- Match game, a game arranged as a test of superiority. -- Match plane (Carp.), either of the two planes used to shape the edges of boards which are joined by grooving and tonguing. -- Matc…

A genus of corals with meandering grooves and ridges, including the brain corals.

Being in the middle; running through the middle; as, a median groove.

Filled with spongy pith; pithy. Medullary groove (Anat.), a groove, in the epiblast of the vertebrate blastoderm, the edges of which unite, making a tube (the medullary canal) from which the brain and spinal cord are developed. -- Medullary rays (Bot.), the rays of cellular tissue seen in a transverse section of exoge…

To make a raised border around the edges of, or to cut fine grooves or indentations across the edges of, as of a coin, or a screw head; also, to stamp in a coining press; to coin.

the explosion of the charge, is driven farther in, expanding the sides to fit closely the grooves of the barrel.

Anything cast in a mold, or which appears to be so, as grooved or ornamental bars of wood or metal.