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📕 rednote ID(小红书号)：3881567312

Trimester Definition, Usage & Key Differences (2 meaning)

Meaning 1：three-month period (trimester)

trimester 🔊

/traɪˈmestər/

a period of three months, especially one of the three periods of pregnancy.

three-month period 🔊

➕

/θriː mʌnθ ˈpɪəriəd/

A period of three months, especially one of the three standard divisions of a human pregnancy, used for tracking fetal development and maternal health milestones.

📁 Category：Diet & Health 🔖 Level：Intermediate

📘 Details & Usage

📖 Root Explanation

From Latin 'tri-' (three) + 'mensis' (month), literally meaning a period of three months.

💡 Mnemonic

Think 'tri' = three, like a tricycle. Combine it with 'semester' (a term), but for three parts instead of two.

📖 Example

During her trimester, she had regular check-ups and followed a healthy diet for the baby's growth. 🔊 During her three-month period of pregnancy, she had regular check-ups and followed a healthy diet for the baby's growth.

🔗 Collocations

first trimester – the initial three-month period of pregnancy

pregnancy trimester – a three-month stage of gestation

complete a trimester – to finish a three-month period

🔄 Synonyms

quarter (n.) – a period of three months, often used in financial or business contexts.

term (n.) – a fixed or limited period, can be used broadly for any designated duration.

🚫 Antonyms

full term (n.) – the entire duration of a pregnancy, typically around nine months (three trimesters).

🌱 Derivatives

trimestral (adj.) – occurring every three months or relating to a trimester.

📖 Cultural Story

Derived from French 'trimestre', ultimately from Latin 'trimestris' (of three months). It is widely used in medical contexts to describe the three-stage progression of pregnancy, and in education to structure academic years, reflecting its role in measuring time in standardized, manageable blocks.

Meaning 2：academic term (trimester)

trimester 🔊

/traɪˈmestər/

one of the three parts of an academic year at some schools and universities.

academic term 🔊

➕

/ˌækəˈdɛmɪk tɜːrm/

One of the three parts into which an academic year is divided in some educational institutions, resulting in shorter, more intensive study periods compared to a two-semester system.

📁 Category：School Education 🔖 Level：Intermediate

📘 Details & Usage

📖 Example

My university uses a trimester system, so we have three shorter academic terms instead of two long ones. 🔊 My university uses a three-term academic system, so we have three shorter academic terms instead of two long ones.

🔗 Collocations

academic trimester – one of the three terms in an academic year

fall trimester – the academic term occurring in the autumn season

trimester break – the holiday or vacation between two trimesters

🔄 Synonyms

term (n.) – a fixed period during which instruction is given at a school or university.

quarter (n.) – an academic period, typically of about ten weeks, used in some educational systems.

🌱 Derivatives

trimestral (adj.) – relating to or occurring in a trimester, especially in an academic context.