What is "clinostat"

Clinostat \Cli"no*stat\, n. [Gr. ? to incline + ? to make to stand.] (Bot.) An apparatus consisting of a slowly revolving disk, usually regulated by clockwork, by means of wich the action of external agents, as light and gravity, on growing plants may be regulated or eliminated.

n. A rotating device that is used to investigate gravitropism in plants

A clinostat is a device which uses rotation to negate the effects of gravitational pull on plant growth ( gravitropism) and development ( gravimorphism). It has also been used to study the effects of microgravity on cell cultures and animal embryos.