Webster's Online Dictionary
with Multilingual Thesaurus Translation

 
Earth's largest dictionary with more than 1226 modern languages and Eve!

Definition: ECHELON LENS

Part of Speech Definition
Expression 1. (Optics), a large lens constructed in several parts or layers, extending in a succession of annular rings beyond the central lens; -- used in lighthouses.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

 Top

Definition: ECHELON LENS

Part of SpeechDefinition
Expression1. (Optics), a large lens constructed in several parts or layers, extending in a succession of annular rings beyond the central lens; -- used in lighthouses.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

Top
 bookmark    email    print    tweet    facebook  

Common Expressions: ECHELON LENS

ExpressionsDefinition
Echelon lens(Optics), a large lens constructed in several parts or layers, extending in a succession of annular rings beyond the central lens; -- used in lighthouses. Source: Webster's Revised Unabridged Dictionary.

Source: compiled by the editor from various references; see credits.

Top