button

but·ton

(bŭt'ŏn),

A knob-shaped structure, lesion, or device.

[M.E., fr. O.Fr. bouton, fr. bouter, to thrust, fr. Germanic]

button

/but·ton/ (but´'n)

1. a knoblike elevation or structure.

2. a spool- or disk-shaped device used in surgery for construction of intestinal anastomosis.

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Jaboulay button  a device used for lateral intestinal anastomosis.

mescal buttons  transverse slices of the flowering heads of a Mexican cactus, Lophophora williamsii, whose major active principle is mescaline.

Murphy's button  a metallic device used for connecting the ends of a divided intestine.

skin button  a connector or stretch of tubing covered with a velour fabric, designed to encourage tissue ingrowth where it passes through the skin.

button

[but′ən]

Etymology: OFr, boton

1 a knoblike elevation or structure.

2 a small appliance shaped like a spool or disk, used in surgery for construction of an intestinal anastomosis.

button

Drug slang
A regional term for mescaline.

Radiation safety
A hockey puck-like mass of plutonium nitrate which is a starting material for bomb-grade plutonium.
 
Transfusion medicine
An aggregate of red blood cells (RBCs) adherent to the bottom of a test tube after centrifugation; if with gentle shaking of the test tube the cells remain adherent, agglutination is assumed to have occurred, implying presence of both an antigen (on the RBCs) and a specific antibody (immunoglobulins) in the serum button.
 
Vox populi
See Panic button.

but·ton

(bŭt'ŏn)

A structure, lesion, or deviceof knob shape.

[M.E., fr. O.Fr. bouton, fr.bouter, to thrust, fr. Germanic]

button 

The preformed piece of glass which will become the segment of a fused bifocal or multifocal lens. It is ground and polished on one side to the appropriate curvature for fusing to the main lens (British Standard). See bifocal lens.

but·ton

(bŭt'ŏn)

A structure, lesion, or device of knob shape.

[M.E., fr. O.Fr. bouton, fr. bouter, to thrust, fr. Germanic]

button

1. a knoblike elevation or structure.

2. an appliance used in surgical anastomosis of the intestine (Murphy's button).

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button tumor

see histiocytoma.

button ulcer

craterous mucosal defects, the edges of which are raised above the surrounding mucosa. The original necrotic center of the lesion is shed leaving a deep ulcer. They are characteristic lesions in the cecum and colon of pigs with subacute salmonellosis. The lesions are usually few in number, small and deep.