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color is usually translucent sea green, sometimes purplish. It has a dorsal row of spiny tubercles, and three rows on each side, but has no scales. The ventral fins unite and form a ventral sucker for adhesion to stones and seaweeds. Called also lumpsucker, cock-paddle, sea owl.

enacious infusible substance for sealing joints in apparatus, or the mouths of vessels or tubes, or for coating the bodies of retorts, etc., when exposed to heat; -- called also luting.

Long slender tubes made of a paste chiefly of wheat flour, and used as an article of food; Italian or Genoese paste.

l.), a perforated plate in echinoderms, through which water is admitted to the ambulacral tubes; -- called also madreporic tubercule.

lids of the genus Maldane, or family Maldanidæ. They have a slender, round body, and make tubes in the sand or mud.

A rounded hillock; a rounded elevation or protuberance. Westmin. Rev.

vex concretions, somewhat resembling the breasts in form; studded with small mammiform protuberances.

Having small nipples, or small protuberances like nipples or mammæ.

der control and direction; to conduct; to guide; to administer; to treat; to handle. Long tubes are cumbersome, and scarce to be easily managed. Sir I. Newton. What wars Imanage, and what wreaths I gain. Prior.

in one direction by a small plunger operated by an elastic metal diaphragm which closes a tube connected with the engine cylinder. It is also moved at right angles to this direction by a reducing motion, called a reproducer, so as to copy accurately on a smaller scale the motion of the engine piston. The resultant of t…

of allowing the gas to exert its elastic force in raising a column of mercury in an open tube, or in compressing a portion of air or other gas in a closed tube with mercury or other liquid intervening, or in bending a metallic or other spring so as to set in motion an index; a pressure gauge. See Pressure, and Illust.…

of endogenous plants found in tropical America, and some species also in India. They have tuberous roots containing a large amount of starch, and from one species (Maranta arundinacea) arrowroot is obtained. Many kinds are cultivated for ornament.

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 exogenous wood, which pass from the pith to the bark. -- Medull…

A climbing plant (Ullucus officinalis) of the Andes, having tuberous roots which are used as a substitute for potatoes.

, and sometimes called Turk's cap. (b) The related genus Mamillaria, in which the stem is tubercled rather than ribbed, and the flowers sometimes large. See Illust. under Cactus.

A tubercle projecting from the anterior articular processes of some vertebræ; a mammillary process.

Small and numerous; as, the miliary tubercles of Echini.

Slender rods or tubes of colored glass fused together and embedded in clear glass; -- used for paperweights and other small articles.

A spot, mark, or small permanent protuberance on the human body; esp., a spot which is dark-colored, from which commonly issue one or more hairs.

A Linnæan class of plants having the stamens united into a tube, or ring, by the filaments, as in the Mallow family.