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nouna period of three months; especially one of the three three-month periods into which human pregnancy is dividedtype of:part of:
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nounone of three divisions of an academic yeartype of:part of:
Definition that contains trimester
- rubella a contagious viral disease that is a milder form of measles lasting three or four days; can be damaging to a fetus during the first trimester
- epidemic roseola a contagious viral disease that is a milder form of measles lasting three or four days; can be damaging to a fetus during the first trimester
- german measles a contagious viral disease that is a milder form of measles lasting three or four days; can be damaging to a fetus during the first trimester
- three-day measles a contagious viral disease that is a milder form of measles lasting three or four days; can be damaging to a fetus during the first trimester