Associations to the word «Diopter»

Wiktionary

DIOPTER, noun. A unit of measure of the power of a lens or mirror, equal to the reciprocal of its focal length in meters. Myopia is diagnosed and measured in diopters.
DIOPTER, noun. (obsolete) Any lens system, such as a telescope.
DIOPTER, noun. (obsolete) A theodolite or similar surveyor’s angle measuring device.
DIOPTER, noun. (obsolete) An alidade.
DIOPTER, noun. (obsolete) A surgical speculum.
DIOPTER, noun. (obsolete) An instrument for drawing the skull by projections.

Dictionary definition

DIOPTER, noun. A unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists.

Wise words

Occasionally in life there are those moments of unutterable fulfillment which cannot be completely explained by those symbols called words. Their meanings can only be articulated by the inaudible language of the heart.
Martin Luther King Jr.