Latin. adj. Closely connected with one, confederate, participant.
- adj. Composed of two or more parts; composite; not simple; as, a complex being; a complex idea. Involving many parts; complicated; intricate.
- Complex fraction. See Fraction.
- Complex number (Math.), in the theory of numbers, an expression of the form a + b(the square root of negative 1), when a and b are ordinary integers.
Syn. - See Intricate.
- n. Assemblage of related things; collection; complication.
- Complex of lines (Geom.), all the possible straight lines in space being considered, the entire system of lines which satisfy a single relation constitute a complex; as, all the lines which meet a given curve make up a complex. The lines which satisfy two relations constitute a congruency of lines; as, the entire system of lines, each one of which meets two given surfaces, is a congruency.