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A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock. Cerebral fissures (Anat.), the furrows or clefts by which the surface of the cerebrum is divided; esp., the furrows first formed by the infolding of the whole wall of the cerebrum. -- Fissure needle (Surg.), a spiral needle for…

-- called also sol by the Italians and French. It was also originally used as the treble clef, and has gradually changed into the character represented in the margin. See Clef. G# (G sharp) is a tone intermediate between G and A.

son. -- Gall of the earth (Bot.), an herbaceous composite plant with variously lobed and cleft leaves, usually the Prenanthes serpentaria.

uilles, needles. Ure.] Gill arches, Gill bars. (Anat.) Same as Branchial arches. -- Gill clefts. (Anat.) Same as Branchial clefts. See under Branchial. -- Gill cover, Gill lid. See Operculum. -- Gill frame, or Gill head (Flax Manuf.), a spreader; a machine for subjecting flax to the action of gills. Knight. -- Gill…

A scarfing or endwise attachment of one timber to another. Cleft grafting (Hort.) a method of grafting in which the scion is placed in a cleft or slit in the stock or stump made by sawing off a branch, usually in such a manaer that its bark evenly joins that of the stock. -- Crown, or Rind, grafting, a method of graft…

A loose, earthy deposit from water, found in the cavities or clefts of rocks, mostly white, but sometimes red or yellow, from a mixture of clay or ocher. P. Cleaveland.

A notch; a cleft; a barb; a ragged or sharp protuberance; a denticulation. Arethuss arose . . . From rock and from jag. Shelley. Garments thus beset with long jags. Holland.

Having jags; having rough, sharp notches, protuberances, or teeth; cleft; laciniate; divided; as, jagged rocks. " Jagged vine leaves' shade." Trench. -- Jag"ged*ly, adv. -- Jag"ged*ness, n.

An American herb with a pretty, white, solitary blossom, and deeply two-cleft leaves (Jeffersonia diphylla); twinleaf.

Having many segments; cleft into several parts by linear sinuses; as, a multifid leaf or corolla.

Cleft or separated into eight segments, as a calyx.

A place which is open; a breach; an aperture; a gap; cleft, or hole. We saw him at the opening of his tent. Shak.

A plant (Ricinus communis) with ornamental peltate and palmately cleft foliage, growing as a woody perennial in the tropics, and cultivated as an herbaceous annual in temperate regions; -- called also castor-oil plant. [Sometimes corrupted into palmcrist.]

Cleft so that the divisions reach nearly, but not quite, to the midrib, or the base of the blade; -- said of a leaf, and used chiefly in composition; as, three-parted, five-parted, etc. Gray.

Palmate, with the lateral lobes cleft into two or more segments; -- said of a leaf. -- Ped"ate*ly, adv.

Cleft in a pedate manner, but having the lobes distinctly connected at the base; -- said of a leaf.

Divided or cleft into five parts.

bull's eye, or center, of a target; hence, the center. [Obs.] "The very pin of his heart cleft." Shak.

entiform lizards of the family Pygopodidæ, which have rudimentary hind legs near the anal cleft, but lack fore legs.

Divided, or deeply cleft, into four parts; as, a quadrifid perianth; a quadrifid leaf.