1. formed by the union of two compounds (Freq. 5) - a conjugated protein • Syn: conjugate • Similar to: bound • Topics: chemistry, chemical science 2. joined together especially in a pair or pairs • Syn: conjugate, coupled • Similar to: united 3. of an organic compound; containing two or more double bonds each separated from the other by a single bond • Syn: conjugate • Similar to: bound • Topics: chemistry, chemical science