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instrument for studying the motions of sounding bodies by optical means. It consists of a tube across the end of which is stretched a film of soap solution thin enough to give colored bands, the form and position of which are affected by sonorous vibrations.

A tubercle on any external part of the body.

Having a head like a pig; hence, figuratively: stupidity obstinate; perverse; stubborn. B. Jonson. -- Pig"-head`ed*ness, n.

A small wooden pail or tub with an upright stave for a handle, -- often used as a dipper.

A plant (Ranunculus Ficaria of Linnæus) whose tuberous roots have been used in poultices as a specific for the piles. Forsyth.

Fig.: A swelling or protuberance like a pimple. "A pimple that portends a future sprout." Cowper.

a visible at the throad of a gamopetalous corolla, while the stamens are concealed in the tube; -- said of dimorphous flowers. The opposite of Ant: thrum-eyed.

y perennial herbs, with opposite linear leaves, and handsome five- petaled flowers with a tubular calyx.

A wind instrument of music, consisting of a tube or tubes 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.

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

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.

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

A small glass tube, often with an enlargement or bulb in the middle, and usually graduated, -- used for transferring or delivering measured quantities.

A tubular or cuplike appendage or expansion of the leaves of certain plants. American pitcher plants, the species of Sarracenia. See Sarracenia. -- Australian pitcher plant, the Cephalotus follicularis, a low saxifragaceous herb having two kinds of radical leaves, some oblanceolate and entire, others transformed into…

A bush, or young tree; a sapling; hence, a stick or staff. "A plant of stubborn oak." Dryden.

A tissue consisting of long and slender tubular cells, of which wood is mainly composed.

nd cough, and with exudation into the pleural cavity. Pleurisy root. (Bot.) (a) The large tuberous root of a kind of milkweed (Asclepias tuberosa) which is used as a remedy for pleuritic and other diseases. (b) The plant itself, which has deep orange-colored flowers; -- called also butterfly weed.

sing compressed air from the wind chest to move them. -- Pneumatic dispatch, a system of tubes, leading to various points, through which letters, packages, etc., are sent, by the flow and pressure of air. -- Pneumatic elevator, a hoisting machine worked by compressed air. -- Pneumatic pile, a tubular pile or cylinde…

thern called the arctic circle, and the southern the antarctic circle. -- Polar clock, a tube, containing a polarizing apparatus, turning on an axis parallel to that of the earth, and indicating the hour of the day on an hour circle, by being turned toward the plane of maximum polarization of the light of the sky, whi…

ment of an anther containing pollen, -- usually there are four in each anther. -- Pollen tube, a slender tube which issues from the pollen grain on its contact with the stigma, which it penetrates, thus conveying, it is supposed, the fecundating matter of the grain to the ovule.