Meaning of CONJUGATE in English


I. ˈkän-ji-gət, -jə-ˌgāt adjective

Etymology: Middle English conjugat, from Latin conjugatus, past participle of conjugare to unite, from com- + jugare to join, from jugum yoke — more at yoke

Date: 15th century


a. : joined together especially in pairs : coupled

b. : acting or operating as if joined


a. : having features in common but opposite or inverse in some particular

b. : relating to or being conjugate complex numbers

complex roots occurring in conjugate pairs

3. of an acid or base : related by the difference of a proton

the acid NH 4 + and the base NH 3 are conjugate to each other

4. : having the same derivation and therefore usually some likeness in meaning

conjugate words

5. of two leaves of a book : forming a single piece

• con·ju·gate·ly adverb

• con·ju·gate·ness noun

II. -jə-ˌgāt verb

( -gat·ed ; -gat·ing )

Date: 1530

transitive verb

1. : to give in prescribed order the various inflectional forms of — used especially of a verb

2. : to join together

intransitive verb

1. : to become joined together


a. : to pair and fuse in conjugation

b. : to pair in synapsis

III. same as 1 noun

Date: circa 1586

1. : something conjugate : a product of conjugating

2. : conjugate complex number

3. : an element of a mathematical group that is equal to a given element of the group multiplied on the right by another element and on the left by the inverse of the latter element

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.