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First Trimester

nounverified·updated May 18, 2026

time period extending from the first day of the last menstrual period through 12 weeks of gestation

MWEWordset Dictionary

Classifications

Entity Type

Unknown—authoritativeglossary_import_default_pending_classifier
?unassignedlast reviewed —

Sensitivity

unclassified

Information Class

unclassified

Variants

plural
First Trimesters
possessive
First Trimester's
pluralpossessive
First Trimesters'