trimester

n.

三个月，学期；

first trimester早期妊娠

third trimester晚期妊娠

1. This trimester will be my last trimester in this college.
   这个学期将是我在这所大学的最后一学期了。

First-trimester or second-trimester screening, or both, for Down's syndrome.
First trimester placental growth factor and soluble fms-like tyrosine kinase 1 and risk for preeclampsia.
First-trimester diagnosis and management of pregnancies implanted into the lower uterine segment Cesarean section scar.
Nuchal translucency and other first-trimester sonographic markers of chromosomal abnormalities.
First-trimester screening for trisomy 21 by free beta-human chorionic gonadotropin and pregnancy-associated plasma protein-A: impact...
First-trimester maternal serum PAPP-A and free-beta subunit human chorionic gonadotropin concentrations and nuchal translucency are ...
Identification of mesenchymal stem/progenitor cells in human first-trimester fetal blood, liver, and bone marrow.
Nuchal translucency: ultrasound screening for chromosomal defects in the first trimester of pregnancy
Fetal nuchal translucency: ultrasound screening for chromosomal defects in first trimester of pregnancy.
Preoperative administration of prostaglandin to avoid dilatation-induced damage in first-trimester pregnancy terminations.