[noun kom-pluh-muh nt; verb kom-pluh-ment] /noun ˈkɒm plə mənt; verb ˈkɒm pləˌmɛnt/
something that completes or makes perfect:
A good wine is a complement to a good meal.
the quantity or amount that completes anything:
We now have a full complement of packers.
either of two parts or things needed to complete the whole; counterpart.
full quantity or amount; complete allowance.
the full number of officers and crew required on a ship.
Geometry. the quantity by which an angle or an arc falls short of 90° or a quarter of a circle.
Compare (def 4).
Also called absolute complement. Mathematics. the set of all the elements of a universal set not included in a given set.
Music. the interval that completes an octave when added to a given interval.
verb (used with object)
to complete; form a complement to:
This belt complements the dress better than that one.
Obsolete. to compliment.
verb (used without object)
Obsolete. to compliment.
a person or thing that completes something
one of two parts that make up a whole or complete each other
a complete amount, number, etc (often in the phrase full complement)
the officers and crew needed to man a ship
(maths) the angle that when added to a specified angle produces a right angle
(logic, maths) the class of all things, or of all members of a given universe of discourse, that are not members of a given set
(music) the inverted form of an interval that, when added to the interval, completes the octave: the sixth is the complement of the third
(immunol) a group of proteins in the blood serum that, when activated by antibodies, causes destruction of alien cells, such as bacteria
(transitive) to add to, make complete, or form a complement to
late 14c., “that which completes,” from Old French compliement “accomplishment, fulfillment” (14c., Modern French complément), from Latin complementum “that which fills up or completes,” from complere “fill up” (see complete (adj.)). Originally also having senses which were taken up c.1650-1725 by compliment.
1610s, “exchange courtesies,” from complement (n.). Meaning “make complete” is from 1640s. Related: Complemented; complementing.
complement com·ple·ment (kŏm’plə-mənt)
A group of proteins found in normal blood serum and plasma that are activated sequentially in a cascadelike mechanism that allows them to combine with antibodies and destroy pathogenic bacteria and other foreign cells.
[kom-pluh-muh n-tahy-zer] /ˈkɒm plə mənˌtaɪ zər/ noun, Linguistics. 1. an element or elements marking a , as that in We thought that you forgot, for … to in For you to go all the way there would be silly, or possessive … -ing in Barbara’s leaving so early worried them. /ˈkɒmplɪmənˌtaɪzə/ noun 1. (generative grammar) […]
- Complement protein
complement protein n. Substance that is produced by a predecessor protein or in response to the presence of foreign material in the body and that triggers or participates in a complement reaction.
- Complement reaction
complement reaction n. A physiological reaction to the presence of a foreign microorganism in which a cascade of enzymatic reactions, triggered by molecular features of the microorganism, result in lysis or phagocytosis of the foreign material.
- Complement unit
complement unit n. The smallest amount of complement that will activate a hemolysin unit, causing lysis of a given quantity of red blood cells.