Temporal Concept
pregnancy trimester
preg·nan·cy tri·mes·ter
Subclass of:
Reproductive Physiological Phenomena
Definitions related to pregnancy trimesters:
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(trimester) A period of three months; especially one of the three three-month periods into which human pregnancy is divided.NCI ThesaurusU.S. National Cancer Institute, 2021
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The three approximately equal periods of a normal human PREGNANCY. Each trimester is about three months or 13 to 14 weeks in duration depending on the designation of the first day of gestation.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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