Home › Words › S › slitmaskslitmaskslitmask · noun — A device that is attached to an optical device in order to remove all light except for that from a particular direction.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, slitmask ranks #17,050 of 43,201 for Qualifying.EtymologyFrom slit + mask.nounA device that is attached to an optical device in order to remove all light except for that from a particular direction.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.slit 64% match — A narrow cut or opening; a slot. vs slitmask →slitlet 59% match — A small slit. vs slitmask →collimator 58% match — An optical device that generates a parallel beam of light. Often used to compensate for laser beam divergence. vs slitmask →slitlike 57% match — Resembling a slit. vs slitmask →slitwidth 57% match — The width of a slit. vs slitmask →astigmatizer 56% match — An optical device by which a point of light is drawn out into a vertical streak. vs slitmask →slitty 55% match — Slitlike. vs slitmask →slittable 52% match — Able to be slit. vs slitmask →