Definition of Dioptre

1. 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.

Exact synonyms: Diopter
Generic synonyms: Unit, Unit Of Measurement



Definition of Dioptre

1. n. A unit employed by oculists in numbering glasses according to the metric system; a refractive power equal to that of a glass whose principal focal distance is one meter.

Definition of Dioptre

1. Noun. (alternative spelling of diopter) ¹

¹ Source: wiktionary.com

Definition of Dioptre

1. diopter [n -S] - See also: diopter

Medical Definition of Dioptre

1. A unit employed by oculists in numbering glasses according to the metric system; a refractive power equal to that of a glass whose principal focal distance is one meter. Origin: F. See Dioptric. Source: Websters Dictionary (01 Mar 1998)

Dioptre Pictures

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Lexicographical Neighbors of Dioptre

dioon
dioperad
dioperads
diophantine
diopside
diopsides
diopsidic
dioptase
dioptases
diopter
diopters
dioptometer
dioptometers
dioptra
dioptral
dioptre (current term)
dioptres
dioptric
dioptric aberration
dioptrical
dioptrics
dioptries
dioptry
diorama
dioramas
dioramic
diorism
diorisms
dioristic
diorite

Literary usage of Dioptre

Below you will find example usage of this term as found in modern and/or classical literature:

1. Proceedings by Philadelphia County Medical Society (1891)
"For those who are not in special practice half-dioptre intervals are ... Thus the convex 6-dioptre lens acts as such only when placed against the eye; ..."

2. Buffalo Medical Journal (1892)
"Thus the convex 0-dioptre lens acts as such only when placed against the eye ; by drawing it back less than three inches it is made to act as a 1_- dioptre ..."

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