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General Term

Trimester

Last updated: June 2026

Definition

One of the three 3-month segments of a standard 9-month human pregnancy.

Clinical Context

In obstetrics and maternal healthcare, terms like Trimester represent key anatomical, physiological, or developmental parameters monitored during gestation, labor, and the postpartum stages. Understanding these terms empowers parents to converse with doctors, interpret ultrasound reports, and track fetal progress.

Medical Notice: This term definition is for educational and planning purposes only. It is not medical advice. If you have any clinical questions or concerns about trimester in your own pregnancy, consult your obstetrician or health team immediately.

Term FAQs

What is the definition of Trimester?

In pregnancy and obstetrics, Trimester is defined as: One of the three 3-month segments of a standard 9-month human pregnancy.

What category does the term Trimester belong to?

The term Trimester belongs to the General category of pregnancy and neonatal health terminology.

Why is understanding Trimester important?

Understanding Trimester helps expectant mothers and partners make sense of medical reports, doctor consultations, and gestational developments.

Related Terms

Antepartum

The period of time occurring before childbirth (also referred to as prenatal).

Conception

The fertilization of an egg by a sperm cell, marking the clinical start of embryonic development.

Due Date (EDD)

The estimated date of birth, calculated as 280 days (40 weeks) from the first day of the last menstrual period.
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