complement

nouns

a word or phrase used to complete a grammatical construction
is a type of (narrower)
a group of words that form a constituent of a sentence and are considered as a single unit
"I concluded from his awkward constructions that he was a foreigner"
a complete number or quantity
"a full complement"
is a type of (narrower)
the total number counted
"a blood count"
number needed to make up a whole force
"a full complement of workers"
is derived from
something added to complete or embellish or make perfect
"a fine wine is a perfect complement to the dinner"; "wild rice was served as an accompaniment to the main dish"
is derived from
is derived from
one of a series of enzymes in the blood serum that are part of the immune response
is a part of
a bodily defense reaction that recognizes an invading substance (an antigen: such as a virus or fungus or bacteria or transplanted organ) and produces antibodies specific against that antigen
is a type of (narrower)
any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
either of two parts that mutually complete each other
is derived from
is a type of (narrower)
a person or thing having the same function or characteristics as another

verbs

make complete or perfect; supply what is wanting or form the complement to
"I need some pepper to complement the sweet touch in the soup"
is a type of (narrower)
bring into balance or equilibrium
"She has to balance work and her domestic duties"; "balance the two weights"