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There are 3 eight-letter words containing IOPTR| DIOPTRAL | • dioptral adj. Synonym of dioptric. • DIOPTRAL adj. relating to a diopter, a measure of refractive power. | | DIOPTRES | • dioptres n. Plural of dioptre. • DIOPTRE n. a measure of refractive power, also DIOPTER. | | DIOPTRIC | • dioptric adj. Acting as a medium for sight; making use of refraction (Of lenses, etc.). • dioptric adj. (Obsolete) Pertaining to a diopter. • dioptric adj. (Obsolete) Capable of being seen through. |
Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America. Definitions are short excerpt from the WikWik.org and 1Word.ws.
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