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Definition of Lightening
1. Noun. Descent of the uterus into the pelvic cavity that occurs late in pregnancy; the fetus is said to have dropped.
Generic synonyms: Descent
2. Noun. Changing to a lighter color.
Exact synonyms: Whitening
Generic synonyms: Change Of Color
Specialized synonyms: Bleach
Derivative terms: Whiten
Generic synonyms: Change Of Color
Specialized synonyms: Bleach
Derivative terms: Whiten
Definition of Lightening
1. lighten [v] - See also: lighten
Medical Definition of Lightening
1. Sensation of decreased abdominal distention during the later weeks of pregnancy following the descent of the foetal head into the pelvic inlet. (05 Mar 2000)