statolith

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English[edit]

Etymology[edit]

From Ancient Greek στάσις (stásis, standing) +‎ -lith

Noun[edit]

statolith (plural statoliths)

  1. A specialized form of amyloplast involved in graviperception by plant roots and most invertebrates.
    • 2002, David Randall, Eckert Animal Physiology[1], page 242:
      The statolith is either acquired from the animal's surroundings or secreted by the epithelial cells of the statocyst. A lobster, for example, loses its statoliths at every molt and replaces them with new grains of sand. In any case, the statolith must have a higher specific gravity than the surrounding fluid.

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