nipple

[/ˈnɪpəl/]
nounfemininepl: nipples / mamilos
mamilo
1. The small, rounded protuberance on the breast through which milk is discharged in mammals
The baby latched onto the mother's nipple to nurse.
O bebê se agarrou ao mamilo da mãe para mamar.
2. A small projection resembling a breast nipple, such as on a bottle or mechanical device
He screwed the metal nipple onto the end of the pipe.
Ele aparafusou o mamilo de metal na extremidade do tubo.
3. The tip of a breast, including the areola
The nipple becomes more sensitive during pregnancy.
O mamilo fica mais sensível durante a gravidez.
In Brazilian Portuguese, 'mamilo' is the standard, medically and socially accepted term. In informal contexts, 'bico' (literally 'beak') is commonly used, especially when speaking to children. The term is straightforward and clinical in both American English and Portuguese medical contexts, with no particular cultural taboo.
Synonyms / Sinônimos
teatbreastmammary gland opening

Regional Variations

General Brazilian Portuguese
mamilo
Most common and standard term
Colloquial Brazilian Portuguese
bico
Informal/colloquial usage; literally means 'beak' or 'tip'
Portugal
mamilo
Same as Brazilian Portuguese; standard European Portuguese term
Technical/Medical contexts
papila mamária
More formal anatomical terminology

Related Words

breastareolalactationnursingbottlepacifier

Related Idioms & Phrases

hard as a nipple
getting down to brass tacks (American slang, unrelated to nipple but phonetically similar in some contexts)
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