Factbox: Fencing at the Olympics July 24, 2012 | Daniel Bases | Reuters NEW YORK (Reuters) - The sport of fencing is one of just four to be contested at every Olympic Games of the modern era, starting in 1896.
An ultrasound of a human fetus. The definition of a fetus is an unborn offspring of an animal with a vertebrae or human. A baby that has been in its mother's stomach growing for 18 weeks is an example of a fetus. fetus.
Definition of gestation for English Language Learners. : 1  the time when a person or animal is developing inside its mother before it is born; also : the process of development that happens during this time. : 2  the process by which something (such as an idea) forms and develops.