inlet Definition

inlet
noun

1. geog.
A narrow arm of water running inland from a sea coast or lake shore, or forming a passage between two islands. See also fjord.
Thesaurus: fjord, bay, ingress, passage, opening, cove.
2. A narrow opening or valve through which a substance, especially a fluid such as air or fuel, enters the cylinder of an engine, pump, compressor or other device. Opposite of outlet.
3. dressmaking.
An extra piece of material sewn into a garment to make it larger.

Etymology: 13c: meaning ‘letting in'.