The totality, the full amount or number which completes something. • The whole working force of a vessel. • An angle which, together with a given angle, makes a right angle. • Something which completes, something which combines with something else to make up a complete whole; loosely, something perceived to be a harmonious or desirable partner or addition. • A word or group of words that completes a grammatical construction in the predicate and that describes or is identified with the subject or object. • A phonetic complement is a graphic element that modifies another, such as (in Linear B script) a small syllabogram that is attached to a logogram as an abbreviation of its reading (as opposed to an adjunct that abbreviates an adjective that modifies that logogram). • An interval which, together with the given interval, makes an octave. • The color which, when mixed with the given color, gives black (for mixing pigments) or white (for mixing light). • Given two sets, the set containing one set's elements that are not members of the other set (whether a relative complement or an absolute complement). • One of several blood proteins that work with antibodies during an immune response. • An expression related to some other expression such that it is true under the same conditions that make other false, and vice versa. • A voltage level with the opposite logical sense to the given one. • A bit with the opposite value to the given one; the logical complement of a number. • The diminished radix complement of a number; the nines' complement of a decimal number; the ones' complement of a binary number. • The radix complement of a number; the two's complement of a binary number. • The numeric complement of a number. • A nucleotide sequence in which each base is replaced by the complementary base of the given sequence: adenine (A) by thymine (T) or uracil (U), cytosine (C) by guanine (G), and vice versa. • Synonym of alexin. • Abbreviation of complementary good. • Something (or someone) that completes; the consummation. • The act of completing something, or the fact of being complete; completion, completeness, fulfilment. • Something which completes one's equipment, dress etc.; an accessory.