definition
The projection of a mammary gland from which, on female mammals, milk is secreted.
definition
A mechanical device through which liquids or gases can be passed in a regulated manner.
definition
An artificial nipple (definition 1) used for bottle-feeding infants.
definition
Any small physical protrusion, such as the lumps on the F and J keys on computer keyboards.
definition
Any small physical protrusion on an automotive, a machine part or any other part that fits into a groove on another part.
definition
A perforated segment that fits into part of the breech of a muzzle-loading gun, on which the percussion cap is fixed.
definition
A short tube threaded at both ends, used as a connector.
definition
An internally threaded piece which holds a bicycle spoke in place on the rim.
example
Turn the nipples on to the bicycle spokes only one turn, for each spoke on the new wheel all the way around until they are all snug, then check alignment.