| / English Dictionary |
OPTICAL
| Pronunciation (US): |  | (GB): | |
I. (adjective)
Sense 1
Meaning:
Of or relating to or involving light or optics
Example:
optical supplies
Classified under:
Relational adjectives (pertainyms)
Pertainym:
optics (the branch of physics that studies the physical properties of light)
Derivation:
optics (the branch of physics that studies the physical properties of light)
Sense 2
Meaning:
Relating to or using sight
Example:
visual navigation
Synonyms:
ocular; optic; optical; visual
Classified under:
Relational adjectives (pertainyms)
Pertainym:
sight (the ability to see; the visual faculty)
Sense 3
Meaning:
Of or relating to or resembling the eye
Example:
ophthalmic defect
Synonyms:
ocular; ophthalmic; optic; optical
Classified under:
Relational adjectives (pertainyms)
Pertainym:
eye (the organ of sight)
Context examples:
Issue associated with the blocking of optical devices, e.g., visual pathways.
(Optical Obstruction Medical Device Problem, Food and Drug Administration)
A material designed to form an outer protective surface on an optical fiber.
(Fiberoptic Cladding Device Component, NCI Thesaurus)
A device designed for cutting an optical fiber and processing the ends for attachment.
(Fiberoptic Cleaver Device Component, NCI Thesaurus)
An optical device designed to take an electromagnetic beam and separate it into two or more parts.
(Beam Splitter Device Component, NCI Thesaurus)
Optical and radio astronomers looked carefully for interstellar gas in our part of the galaxy, but couldn't find much in Earth's neighborhood.
(Evidence for supernovas near Earth, NASA)
An optical condition in the eye where there is an error of refraction of light rays on the retina.
(Ametropia, NCI Thesaurus)
A microscope is an optical instrument that uses a combination of lenses to produce magnified images of very small objects
(Microscope, NCI Thesaurus)
This unusual source, called LGGS J004527.30+413254.3 (J0045+41 for short), was seen in optical and X-ray images of Andromeda, also known as M31.
(Giant Black Hole Pair Photobombs Andromeda Galaxy, NASA)
An electric or optical device designed to focus electromagnetic radiation.
(Lens Device Component, NCI Thesaurus)
This new composite image of Arp 299 contains X-ray data from Chandra (pink), higher-energy X-ray data from NuSTAR (purple), and optical data from the Hubble Space Telescope (white and faint brown).
(Chandra Samples Galactic Goulash, NASA)
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