Look up: Second Trimester

1. second trimester
   [n] - time period extending from the 13th to the 27th week of gestation
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. second trimester
   noun time period extending from the 13th to the 27th week of gestation
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
3. Second Trimester
   Occurs from week 14 to 28 weeks of pregnancy (12-26 weeks of gestation). Both the woman and the fetus are growing and changing at an amazing rate. It is possible to hear the heartbeat during prenatal appointments and an ultrasound will generally be performed around the 20th week of pregnancy. All of the major organs have formed by the 15th week ...
   Found on http://www.pregnology.com/AZ/S/2