/ɪ'lektɪv; ɪ`lɛktɪv/
adj
1 [usu attrib 通常作定语] having the power to elect 有选举权的
*an elective assembly 有选举权的大会.
2 chosen or filled by election 选任的; 由选举产生的
*an elective office 选任的职位.
3 (esp of an American university course, etc) not compulsory; optional （尤指美国大学课程等）非强迫的, 任选的, 选修的
*elective subjects 选修科目.
4 not urgently necessary 非急需的
*elective surgery 非急需施行的手术.

n (esp US) optional course or subject studied at school or college 学校的选修课或选修科目
*She is taking French as an elective next year. 她明年选修法语.