adjective

1. consisting of many different and connected parts. "a complex network of water channels" синонимы: compound, composite, compounded, multiplex
2. denoting or involving numbers or quantities containing both a real and an imaginary part.
3. denoting an ion or molecule in which one or more groups are linked to a metal atom by coordinate bonds. "in naming complex ions, the names of the ligands are cited first"

noun

1. a group or system of different things that are linked in a close or complicated way; a network. "a complex of mountain roads" синонимы: network, system, nexus, web, tissue, combination, composite, synthesis, fusion, aggregation
2. a related group of repressed or partly repressed emotionally significant ideas which cause psychic conflict leading to abnormal mental states or behaviour.
3. an ion or molecule in which one or more groups are linked to a metal atom by coordinate bonds. "two guanine bases can attach themselves to the same platinum atom, forming a stable complex"

verb

make (an atom or compound) form a complex with another. "the DNA was complexed with the nuclear extract"