Definition of obstruction for English Language Learners. : something that blocks something else and makes it difficult for things to move through. : the condition of being blocked so that things cannot move through easily.
The Thrasher. 1. The Thrasher-is a hand gesture with a sexual connotation. The pointer finger and middle are pointing straight up while the thumb is bent like a hook. The ring and index fingers are kept in a fist and the back of the hand faces outwards (away from the gesture).
The gestation period is a scientific term for the length of time, from conception to birth, an embryo turned fetus remains in the womb of its mother.It pertains to any specie â¦ s of animal that are capable of giving live birth, from sharks to elephants and every live-bearing animal in between.hen studying birds it is important to learn their gestation  period. A Brown Thrasher has an incubation time of ten to fourteen  days, and a nestling time of nine to thirte â¦ en days.