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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.

The tubers of the Mexican plant Ipomoea purga (or Exogonium purga), a climber much like the morning-glory. The abstract, extract, and powder, prepared from the tubers, are well known purgative medicines. Other species of Ipomoea yield several inferior kinds of jalap, as the I. Orizabensis, and I. tuberosa. False jalap,…

Gyre, Solar.] (Bot.) (a) An American plant, a perennial species of sunflower (Helianthus tuberosus), whose tubers are sometimes used as food. (b) One of the tubers themselves. -- Jerusalem cherry (Bot.), the popular name of either of either of two species of Solanum (S. Pseudo-capsicum and S. capsicastrum), cultivate…

A kind of toy or rude musical instrument, as a tube inside of which is a stretched string made to vibrate by singing or humming into the tube.

A knot in wood; a protuberance. Wright.

A protuberance; a swelling; a knob; a button; hence, rising ground; a summit. See Knob, and Knop. The highest part and knap of the same island. Holland.

Having knaps; full of protuberances or humps; knobby. [Obs.] Huloet.

A hard protuberance; a hard swelling or rising; a bunch; a lump; as, a knob in the flesh, or on a bone.

t of Antenna. The horns of a roe deer of Greenland are pointed at the top, and knobbed or tuberous at the bottom. Grew.

Full of, or covered with, knobs or hard protuberances. Dr. H. More.

A knob, lump, swelling, or protuberance. With lips serenely placid, felt the knot Climb in her throat. Tennyson.

A contorted knot in wood; a crossgrained protuberance; a nodule; a boss or projection.

with an iron hook at one end a handle at the other, used in firing cannon with a friction tube.

A milky or colored juice in certain plants in cavities (called latex cells or latex tubes). It contains the peculiar principles of the plants, whether aromatic, bitter, or acid, and in many instances yields caoutchouc upon coagulation.

tarnished. It is both malleable and ductile, though with little tenacity, and is used for tubes, sheets, bullets, etc. Its specific gravity is 11.37. It is easily fusible, forms alloys with other metals, and is an ingredient of solder and type metal. Atomic weight, 206.4. Symbol Pb (L. Plumbum). It is chiefly obtained…

A glass tube of peculiar construction, adapted for drawing blood from a scarified part by means of a vacuum. Horse leech, a less powerful European leech (Hæmopis vorax), commonly attacking the membrane that lines the inside of the mouth and nostrils of animals that drink at pools where it lives.

rial permeable by cathode rays, as aluminium, which forms a portion of a wall of a vacuum tube, or which is mounted within the tube and exposed to radiation from the cathode. Lenard rays are similar in all their known properties to cathode rays. So called from the German physicist Philipp Lenard (b. 1862), who first de…

(below). -- Box level, a spirit level in which a glass-covered box is used instead of a tube. -- Garpenter's level, Mason's level, either the plumb level or a straight bar of wood, in which is imbedded a small spirit level. -- Level of the sea, the imaginary level from which heights and depths are calculated, taken…

A South European plant of the genus Leontice (L. leontopetalum), the tuberous roots of which contain so much alkali that they are sometimes used as a substitute for soap.