Definitions:
consisting of many different and connected parts

denoting or involving numbers or quantities containing both a real and an imaginary part.

denoting an ion or molecule in which one or more groups are linked to a metal atom by coordinate bonds

a group or system of different things that are linked in a close or complicated way; a network

a related group of repressed or partly repressed emotionally significant ideas which cause psychic conflict leading to abnormal mental states or behaviour.

an ion or molecule in which one or more groups are linked to a metal atom by coordinate bonds

make (an atom or compound) form a complex with another