natatrix Save DMLBS natatrix [cf. CL natator] , a (as adj.) that swims or floats (f.; in quot., transf. or fig.). b (as sb.) swimmer (f.). a hic crescit ‥ / natatrix / pinus Garl. Epith. IV 141. b nato ‥ inde natator, ~ix Osb. Glouc. Deriv. 369.