trimester

/traɪˈmestə(r)/ (bre, ipa) · [traɪmˈɛstɚ] /traɪˈmestər/ (ame, ipa) · [traɪmˈɛstɚ] /(ˌ)trī-ˈme-stər How to pronounce trimester (audio) ˈtrī-ˌme- How to pronounce trimester (audio)/ (ame, mw)

trimester — 名詞

  • trimestersingular
  • trimestersplural

1. a period of about three months, used especially when dividing time into regular

1.名詞B2
釋義

三個月期

約三個月的時間區段

a period of about three months, used especially when dividing time into regular blocks for planning or reporting purposes

例句

The company reviews its budget every trimester rather than once a year.

這間公司每三個月檢討一次預算,而不是一年一次。

collocation: every trimester

Nora plans to finish her language course within a single trimester.

Nora 計劃在三個月內完成她的語言課程。

同義詞
  • quarter

    more common in business and finance; always aligns with the calendar year

  • term

    broader meaning — can be any fixed length, not specifically three months

文法句型

a trimester

per trimester

the first/second/third trimester

用法筆記

Unlike "quarter", which always means exactly three calendar months (Jan-Mar, Apr-Jun, etc.), trimester can refer to any three-month block even if it does not align with calendar quarters.

常見錯誤

The project will take one trimester, from April 1 to June 15.
The project will take about three months, from April 1 to June 15.
💡Use 'trimester' only when the three-month block is part of a planned division, not for any three-month period.

2. one of the three approximately equal stages of a human pregnancy, each lasting a

2.名詞B2
釋義

孕期階段

懷孕期間的三個階段之一

one of the three approximately equal stages of a human pregnancy, each lasting about three months and marked by different developments in the growth of the baby

例句

Shirin felt much more energetic once she reached her second trimester.

Shirin 進入第二孕期後感覺精力充沛了許多。

collocation: first/second/third trimester

The doctor said the ultrasound is usually done during the first trimester.

醫生說超音波檢查通常在第一孕期進行。

preposition: during the [ordinal] trimester

同義詞
  • stage of pregnancy

    more general; can refer to any point in pregnancy, not just the three blocks

  • term

    used in the phrase 'full-term baby' but not as a direct synonym for trimester

文法句型

the first/second/third trimester of pregnancy

in the [ordinal] trimester

用法筆記

Frequently preceded by an ordinal number — first, second, or third trimester. The word itself already implies a three-part division, so do not say "first pregnancy trimester" (redundant).

常見錯誤

She is in her first pregnancy trimester.
She is in her first trimester.
💡'Trimester' already refers to a pregnancy stage; 'pregnancy' is redundant.

3. a block of about three months that makes up one part of a three-part teaching ye

3.名詞B2
釋義

學期

三學期制中的一期

a block of about three months that makes up one part of a three-part teaching year in certain schools or universities

例句

Anjali registered for three classes in the fall trimester.

Anjali 在秋季學期註冊了三門課。

collocation: fall/spring trimester

The university switched from a semester system to a trimester system last year.

那所大學去年從兩學期制改為三學期制。

collocation: trimester system

同義詞
  • term

    more general; can refer to any division of the academic year, regardless of how many there are

  • semester

    refers specifically to one of two terms per year — different from trimester

  • quarter

    one of four terms per year in a quarter system

文法句型

the [ordinal] trimester

during the [season] trimester

a trimester system

用法筆記

More common in American English than British English. Schools that use a trimester system have three terms (fall, winter, spring) instead of the more common two-semester system. Do not confuse with "semester" (one of two terms) or "quarter" (one of four terms).

常見錯誤

I am taking five classes this trimester at a school with two semesters.
I am taking five classes this trimester at a school with three terms.
💡A school must use a three-term system for 'trimester' to be the correct word.