adjective
Etymology: Middle English, joined, from past participle of couplen to couple, join — more at couple
1. of a quadrupedal mammal : having a coupling of a specified sort — usually used in combination
long- coupled
well- coupled
2. : entered in a horse race as a single entry
two of that stable's horses coupled in the third race
3. of a fighting cock : crippled specifically by a back wound paralyzing the legs
4.
a. : mechanically or electrically connected
b. of a photographic range finder : connected to the focusing mechanism so that operation of the finder focuses the lens