adj
Meaning 1
Of or relating to sight; visual.
Definition source: English Wiktionary via Wiktextract
Examples
- Strabismus is an optical defect.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Standard Lemma guide
optical
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
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Received-Pronunciation: /ˈɒptɪkəl/
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Southern-England: Recorded audio is listed in the source snapshot.
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General-American: /ˈɑptɪkəl/
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CMU ARPABET: AA1 P T IH0 K AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
adj
Meaning 2
Designed to assist or enhance sight
Definition source: English Wiktionary via Wiktextract
Examples
- A microscope is an optical instrument.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
adj
Meaning 3
Of or relating to optics.
Definition source: English Wiktionary via Wiktextract
Examples
- Refraction is an optical effect.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
adj
Meaning 4
Of or relating to visible light.
Definition source: English Wiktionary via Wiktextract
Examples
- Optical telescopes don't work when it is cloudy.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
adj
Meaning 5
Incorporating light-sensitive devices.
Definition source: English Wiktionary via Wiktextract
Examples
- An optical switch opens the door automatically.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
noun
Meaning 6
Any special effect requiring laboratory work on the film.
Definition source: English Wiktionary via Wiktextract
Topics: broadcasting, film, media, television
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
adjective
Meaning 7
of or relating to or involving light or optics
Definition source: Princeton WordNet 3.0
Examples
- optical supplies
Meaning relationships
Synonyms: none provided
Antonyms: none provided
adjective
Meaning 8
relating to or using sight
Definition source: Princeton WordNet 3.0
Examples
- ocular inspection
- an optical illusion
- visual powers
- visual navigation
Meaning relationships
Synonyms: ocular, optic, visual
Antonyms: none provided
adjective
Meaning 9
of or relating to or resembling the eye
Definition source: Princeton WordNet 3.0
Examples
- ocular muscles
- an ocular organ
- ocular diseases
- the optic (or optical) axis of the eye
- an ocular spot is a pigmented organ or part believed to be sensitive to light
Meaning relationships
Synonyms: ocular, optic, opthalmic
Antonyms: none provided
History
Etymology
From optic + -al.
Across languages
Translations
28 source translations are retained for this English entry.
- Bulgarian: оптичен (optičen) — designed to assist or enhance sight
- Catalan: òptic — designed to assist or enhance sight
- Czech: optický — designed to assist or enhance sight
- Czech: zrakový — designed to assist or enhance sight
- Danish: optisk — designed to assist or enhance sight
- Finnish: optinen — designed to assist or enhance sight
- French: optique — designed to assist or enhance sight
- Hebrew: אופטי (ópti) — designed to assist or enhance sight
- Kazakh: оптикалық (optikalyq) — designed to assist or enhance sight
- Russian: опти́ческий (optíčeskij) — designed to assist or enhance sight
- Bulgarian: видим (vidim) — relating to visible light
- Catalan: òptic — relating to visible light
- Czech: optický — relating to visible light
- Danish: optisk — relating to visible light
- Finnish: optinen — relating to visible light
- French: optique — relating to visible light
- Greek: οπτικός (optikós) — relating to visible light
- Hebrew: אופטי (ópti) — relating to visible light
- Hindi: प्रकाशीय (prakāśīya) — relating to visible light
- Kazakh: оптикалық (optikalyq) — relating to visible light
- Russian: опти́ческий (optíčeskij) — relating to visible light
- Catalan: òptic — incorporating light-sensitive devices
- Czech: optický — incorporating light-sensitive devices
- Danish: optisk — incorporating light-sensitive devices
- Finnish: optinen — incorporating light-sensitive devices
- French: optique — incorporating light-sensitive devices
- Hebrew: אופטי (ópti) — incorporating light-sensitive devices
- Russian: опти́ческий (optíčeskij) — incorporating light-sensitive devices
Real reading context