- Bot. a plant cell containing plastids, starch grains, or other statoliths
- Zool. a sense organ found in many invertebrate animals, consisting typically of a fluid-filled sac lined with small sensory hairs and containing one or more tiny, free, sandlike grains, or statoliths: it functions as an organ of balance or equilibrium
Origin of statocystfrom Classical Greek statos, standing from histanai, to stand + -cyst
A small organ of balance in many invertebrates, consisting of a fluid-filled sac containing statoliths that stimulate sensory cells and help indicate position when the animal moves.