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of straw, reed, wood, or metal; any tube which produces musical sounds; as, a shepherd's pipe; the pipe of an organ. "Tunable as sylvan pipe." Milton. Now had he rather hear the tabor and the pipe. Shak.

A plastic, unctuous clay of a grayish white color, -- used in making tobacco pipes and various kinds of earthenware, in scouring cloth, and in cleansing soldiers' equipments.

A line of pipe with pumping machinery and apparatus for conveying liquids, esp. petroleum, between distant points.

To convey by a pipe line; to furnish with a pipe line or pipe lines.

To whiten or clean with pipe clay, as a soldier's accouterments.

Formed with a pipe; having pipe or pipes; tubular.

Any lophobranch fish of the genus Siphostoma, or Syngnathus, and allied genera, having a long and very slender angular body, covered with bony plates. The mouth is small, at the end of a long, tubular snout. The male has a pouch on his belly, in which the incubation of the eggs takes place.

One who lays conducting pipes in the ground, as for water, gas, etc.

The laying of conducting pipes underground, as for water, gas, etc.

Any fish of the genus Fistularia; -- called also tobacco pipefish. See Fistularia.

One who plays on a pipe, or the like, esp. on a bagpipe. "The hereditary piper and his sons." Macaulay.

Of or pertaining to the order of plants (Piperaceæ) of which the pepper (Piper nigrum) is the type. There are about a dozen genera and a thousand species, mostly tropical plants with pungent and aromatic qualities.

A crystalline substance, (C2H4NH)2, formed by action of ammonia on ethylene bromide, by reduction of pyrazine, etc. It is a strong base, and is used as a remedy for gout.

Pertaining to, or derived from, or designating, a complex organic acid found in the products of different members of the Pepper family, and extracted as a yellowish crystalline substance.

Same as Pepperidge.

pery, ammoniacal odor. It is related to pyridine, and is obtained by the decomposition of piperine.

A white crystalline compound of piperidine and piperic acid. It is obtained from the black pepper (Piper nigrum) and other species.

A white crystalline substance obtained by oxidation of piperic acid, and regarded as a complex aldehyde.

A hydrocarbon obtained by decomposition of certain piperidine derivatives.

The hollow stem or tube of a pipe used for smoking tobacco, etc. Took a long reed for a pipestem. Longfellow.