nipple

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nipple

1. the small conical projection in the centre of the areola of each breast, which in women contains the outlet of the milk ducts
2. a small drilled bush, usually screwed into a bearing, through which grease is introduced
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Nipple

 

a threaded metal connecting pipe used to achieve a tight connection of a coupling to a pipeline by means of a coupling nut. Nipples are used to connect pipelines and components of instruments and machines. Nipples with outside thread are used to assemble radiators for central heating systems. The parts used to fasten the spokes to the rim of a bicycle wheel are also called nipples.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

nipple

[′nip·əl]
(anatomy)
The conical projection in the center of the mamma, containing the outlets of the milk ducts.
(design engineering)
A short piece of tubing, usually with an internal or external thread at each end, used to couple pipes. Also known as bushing.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

nipple

nipple
A short length of pipe with threads at each end; used to join couplings or fittings.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

nipple

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The male nipple plan from Micol joins a number of campaigns aiming for equality on the nipple front, most notably Free the Nipple, a feature film and a real life movement aiming for online parity between topless genders.
Interestingly, she wrote, male nipples were also sexualized and banned from public view until men protested, ignited in 1930 when four were arrested in Coney Island for going shirtless on a beach.
e ongoing "Free the Nipple" campaign was launched in response to the fact that only male nipples are allowed on Instagram, and in the new rules Facebook admits "our policies can sometimes be more blunt than we would like".
e ongoing 'Free the Nipple' campaign was launched in response to the fact that only male nipples are allowed on Instagram, and in the new rules Facebook admits "our policies can sometimes be more blunt than we would like".
Facebook's policy prohibits not only "any obvious sexual activity," but also "naked 'private parts' including female nipple bulges and naked butt cracks; male nipples are ok," Gawker discovered earlier this year.