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trimester Definition

tri·mes·ter (trī mes′tər, trī′mes′-)

noun

  1. a period or term of three months; specif., any of the three three-month periods of a human pregnancy
  2. in some colleges and universities, any of the three periods into which the academic year is divided

Etymology: Fr trimestre < L trimestris, of three months < tri-, three + mensis, month: see moon

trimester Usage Examples

Preposition: of

  • pregnancy: All patients were beyond the first trimester of pregnancy at the initiation of therapy.
  • gestation: Population Fourteen normal pregnant women followed through the three trimesters of gestation.

Converse of object

  • call: Pregnancy is broken down into three phases, which are called trimesters.
  • combine: The Antenatal Screening Service offer the Integrated test, first trimester Combined test and second trimester Quadruple test.
  • compare: Only 8.7 % of controls had ultrasound in the first trimester compared with 15.7 % of cases.

Adjective modifier

  • third: In your third trimester, your baby's brain really starts to develop.
  • 3rd: The majority present in their 2nd or 3rd trimester.
  • second: Take a well earned break Your second trimester is the ideal time to get away.
  • 2nd: They found lopinavir AUC was low with standard dosing during the 2nd trimester.
  • first: The first trimester is the period of greatest risk for the baby.
  • 1st: Not recommended for use in your 1st Trimester of pregnancy.

Modifies a noun

  • miscarriage: Higher levels of endogenous interferon gamma were found in women with recurrent first trimester miscarriage compared to women with normal pregnancy.
  • abortion: Moreover, 44 percent offered training for second trimester abortions, compared with seven percent in 1992.
  • serum: Twins and insulin dependent diabetes mellitus Second trimester serum marker levels are raised in twin pregnancies.
  • screening: Data on the value of first trimester anomaly screening are lacking.
  • marker: Twins and insulin dependent diabetes mellitus Second trimester serum marker levels are raised in twin pregnancies.
  • pregnancy: Trimester divide pregnancy into three periods, each about 13 weeks long.

Noun used with modifier

  • lecture: Each of the lecture block trimesters consists of a three-month period.
  • block: Each of the lecture block trimesters consists of a three-month period.
  • st: Revue d'économie industrielle, No. 67, 1 st trimester.