Definition: The middle third of a human PREGNANCY, from the beginning of the 15th through the 28th completed week (99 to 196 days) of gestation.
human only; check tags HUMANS & FEMALE & PREGNANCY; DF: PREGN TRIMESTER SECOND
Other names Trimester, Second; Pregnancy, Second Trimester; Midtrimester; Trimesters, Second; Second Trimesters; Second Trimester Pregnancy; Second Trimester Pregnancies; Second Trimester; Second Pregnancy Trimesters; Second Pregnancy Trimester; Pregnancy Trimesters, Second; Pregnancies, Second Trimester; Midtrimesters