Synset

a transparent optical device used to converge or diverge transmitted light and to form images
<noun.artifact> freq. cnt.: 5 freq. cnt.: 5

semantic pointers

hyponym

anastigmat anastigmatic lens camera lens, optical lens compound lens condenser, optical condenser contact, contact lens converging lens, convex lens crown lens diverging lens, concave lens eyepiece, ocular field lens Fresnel lens intraocular lens meniscus monocle, eyeglass objective, objective lens, object lens, object glass

hypernym

part holonym

optical instrument