From Wiktionary, the free dictionary
From semi- + crouch.
semicrouch (plural semicrouches)
- A partial crouch.
1988 June 17, Sarah Kaufman, “Momix With Shadowfax”, in Chicago Reader[1]:They swirl about in a semicrouch, coming together to form a circle with their fans.
1993, Youth Baseball: A Complete Handbook[2], →ISBN, page 49:The semicrouch position allows the catcher to quickly execute a throw.
2013, James Axler, Sorrow Space[3], →ISBN, page 14:The incongruous figure of Domi stood before them in a semicrouch, her nose twitching as the chamber powered up.