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A mark or depression in the middle of the abdomen; the umbilicus. See Umbilicus.belly button in humans

isons known as strychnine and brucine are obtained. The seeds are sometimes called Quaker buttons.

ermination of alloys; esp., the separation, as by acids, of gold from silver in the assay button.

The button of metal from an assay.

), scissors used to open wounds, the blade of which, to be thrust into the orifice, has a button at the end. Wiseman.

Having a blunt or button-shaped extremity; -- said of cutting instruments.

lic plates and other substances, or hollow and sharpedged, for cutting out blanks, as for buttons, steel pens, jewelry, and the like; a die.

oor, a black-breasted species, and the hill bustard quail (T. ocellatus). See Turnix. -- Button quail (Zoöl.), one of several small Asiatic species of Turnix, as T. Sykesii, which is said to be the smallest game bird of India. -- Mountain quail. See under Mountain. -- Quail call, a call or pipe for alluring quails i…

ust of the genus (Edipoda; -- so called from the quaking noise made during flight. Quaker buttons. (Bot.) See Nux vomica. -- Quaker gun, a dummy cannon made of wood or other material; -- so called because the sect of Friends, or Quakers, hold to the doctrine, of nonresistance. -- Quaker ladies (Bot.), a low American…

The act, process, or result (in the process of parting) of alloying a button of nearly pure gold with enough silver to reduce the fineness so as to allow acids to attack and remove all metals except the gold; -- called also inquartation. Compare Parting.

. of Cannon. (b) An additional thickness of canvas, cloth, or the like, around an eyelet, buttonhole, etc.

The button, globule, or mass of metal, in a more or less impure state, which forms in the bottom of the crucible in smelting and reduction of ores.

ssaying, to remove the earth and gangue, and to concentrate the gold and silver in a lead button.

earthy material, with borax, lead, soda, etc., thus leaving the gold and silver in a lead button; hence, to separate from, or by means of, a slag.

A loop forming an eye to a button.

, a tool shaped like a gouge, used with a brace in boring wood. See Bit, n., 3. -- Shell button. (a) A button made of shell. (b) A hollow button made of two pieces, as of metal, one for the front and the other for the back, -- often covered with cloth, silk, etc. -- Shell cameo, a cameo cut in shell instead of stone.…

tender bloom. Young. Shelter tent,a small tent made of pieces of cotton duck arranged to button together. In field service the soldiers carry the pieces.

Trousers or overalls of thick cloth or leather, buttoned on the outside of each leg, and generally worn to protect other trousers when riding on horseback. [Local, U.S.] Bartlett.

Lapping over the breast only far enough to permit of buttoning, and having buttons on one edge only; as, a single-breasted coast.

used for covering a joint, or forming a joint between the ends of two other pipes. Sleeve button, a detachable button to fasten the wristband or cuff. -- Sleeve links, two bars or buttons linked together, and used to fasten a cuff or wristband. -- To laugh in the sleeve, to laugh privately or unperceived, especially…