vi.

1. 流产，小产，早产
2. （计划等）失败，夭折
3. 【生】发育不全；退化

vt.

1. 使流产；堕（胎）
2. 使（计划等）中途失败；使中止，使夭折

v.

1. carry out or undergo the abortion of (a fetus).
2. Biology  (of an embryonic organ or organism) fail to mature.
3. bring to a premature end because of a problem or fault.

n.