Real Dictionary

slat
Slats are narrow pieces of wood, metal, or plastic, usually with spaces between them, that are part of things such as Venetian blinds or cupboard doors.

slat in American English 1
a thin, narrow strip of wood, metal, etc.
noun: a long thin, narrow strip of wood, metal, etc., used as a support for a bed, as one of the horizontal laths of a Venetian blind, etc.

slat in American English 2
to flap or beat vigorously, as sails in a strong wind
to throw forcefully
intransitive verb: to flap violently, as sails
noun: a slap; a sharp blow
transitive verb: to throw or dash with force

slat in British English 1
noun: a narrow thin strip of wood or metal, as used in a Venetian blind, etc
verb: to provide with slats

slat in British English 2
noun: a sudden blow
verb: to throw violently; fling carelessly

slat in British English 3
noun: a spent salmon