La-çẽr'tȧ, n.

noun

n. [Lat. lacerta, lizard, and lacertus, muscle, and also lizard.]

  1. (Zoöl.) A genus of lizards.
  2. (Astron.) A northern constellation; the Lizard.
  3. A muscle. [Obs.] Chaucer.
  4. A fathom. [Obs.] Doomsday Book.