Definition of "lightening" in English

verb

1. present participle and gerund of lighten

noun

1. The act or result of making something light or lighter.

2. (medicine) The sensation caused by the descent of the uterus into the pelvic cavity before the onset of labour

3. (nautical) The removal of cargo (especially crude oil) from a vessel in order to reduce its draft

noun

1. (obsolete or proscribed) Alternative form of lightning.