先行;先在;逆行
Antecedence \An`te*ced"ence\, n. 1. The act or state of going before in time; precedence. --H. Spenser. 2. (Astron.) An apparent motion of a planet toward the west; retrogradation.
antecedence n : preceding in time [syn: {priority}, {antecedency}, {anteriority}, {precedence}, {precedency}] [ant: {posteriority}]