Definitions
from The Century Dictionary.
- noun The improved form of optical apparatus now used in lighthouses, by which practically all the light from the lamp or other source is made available for the desired effect of illumination.
from the GNU version of the Collaborative International Dictionary of English.
- noun A lamp with lenses or reflectors to collect the rays of light and throw them in a given direction; -- used in lighthouses.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
lighthouse lamp withlenses orreflectors to collect therays oflight and throw them in a given direction.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Ancient Greek
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Examples
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