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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.

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,

n the excess metal remaining from the casting and sprue; located at the end of the sprue, opposite the casting.
button, implant,

button

1. a knoblike elevation or structure.
2. an appliance used in surgical anastomosis of the intestine (Murphy's button).

button tumor
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.
References in periodicals archive ?
The new World Time Sport debuts a state-of-the-art buttonless touch lens operation, allowing for a sleek, ultra-modern look, and the ability to change modes with simple finger swipe across the case.
Reported as one of the smallest, network-ready laser printers in the world, the ML-1630W model has a high-style glossy piano black finish, buttonless soft-touch sensor panels with blue LED indicators, and its 45 dBA ranks it as one of the quietest printer in the world.
STOCKHOLM, Sweden -- Neonode (NASDAQ:NEON), a Swedish developer of mobile devices and a pioneer in buttonless, touchscreen mobile phones, today announced the opening of its web shop for sales to the European market.
STOCKHOLM, Sweden -- Neonode, the Swedish developer of mobile devices and pioneer in buttonless, touch screen mobile phones, has received a considerable order from the operator, Telenor Sweden, for the new Neonode N2.
Neonode, the Swedish Developer of Mobile Devices and Pioneer in Buttonless, Touchscreen Mobile Phones, Celebrates the Availability of the New Neonode N2 With a Party in Athens on Thursday Together with Its Regional Distribution Partner MyPhone
STOCKHOLM, Sweden -- Neonode, a Swedish developer of mobile devices and a pioneer in buttonless, touchscreen mobile phones, expanded its network of distribution partners with an agreement with AEG to distribute the new Neonode N2 mobile phone in several markets.
STOCKHOLM, Sweden -- Neonode, a Swedish developer of mobile devices and a pioneer in buttonless, touchscreen mobile phones, today announced the strengthening of its management team with the appointment of Per Hellberg as Vice President of Sales.
Neonode, a Swedish developer of mobile devices and a pioneer in buttonless, touchscreen mobile phones, showcased its new mobile phone Neonode N2 for the first time in February this year to critical acclaim.
a Swedish developer of mobile devices and a pioneer in buttonless, touchscreen mobile phones, today announced the appointment of Mikael Hagman as President and Chief Executive Officer.
STOCKHOLM, Sweden -- Neonode, a Swedish developer of mobile devices and a pioneer in buttonless touchscreen mobile phones, will be presenting a new phone at the 3GSM World Congress in Barcelona.