Word
optical
Phoneticsop·ti·cal, stress on the first syllable
US/ˈɑptɪkəɫ/
UK/ˈɒptɪkəl/
Definitions
01relating to sight
B2 · Upper Intermediate
adj. relating to the sense of sight or the way you see things.
adj. pertaining to the biological or psychological process of vision.
“An optical illusion can make a flat drawing look like it has depth.”
“The brain processes optical signals from the eyes to create a coherent map of the physical environment.”
02using light or lenses
B2 · Upper Intermediate Science
adj. using light or lenses to help you see or to record information.
adj. utilising light-sensitive components or lenses to enhance vision or transmit data.
“The telescope uses high-quality optical glass to see distant stars.”
“Optical fibre cables allow for much faster data transmission than traditional copper wires by using pulses of light.”
Synonyms
03film special effects
C1 · Advanced Countable noun Theater Technical
n. a special effect in a film made by changing the film itself in a lab.
n. a visual effect created through laboratory processes or camera manipulation rather than digital CGI.
“Old movies used physical opticals to create fades between scenes.”
“Before the advent of digital compositing, complex opticals were achieved through multiple exposures on a single strip of film.”
Usage
usually used in the plural form 'opticals'
Synonyms
Collocations
Common phrases and expressions where native English speakers use the word “optical” in context.
Verb
01. achieve optical clarity
“The lens was polished extensively to achieve maximum optical clarity.”
verb + adj + noun
02. provide optical zoom
“This camera provides 10x optical zoom without sacrificing image quality.”
verb + adj + noun
Adjective
03. purely optical
“The distortion in the image was purely optical and not a digital glitch.”
adv + adj
Noun
04. optical character recognition
“The software uses optical character recognition to convert scanned images into editable text.”
adj + noun + noun
05. optical fiber
“Data is transmitted at high speeds through optical fiber cables.”
adj + noun
06. optical illusion
“The painting uses perspective to create a clever optical illusion of depth.”
adj + noun
07. optical instrument
“Microscopes and telescopes are essential optical instruments for scientific research.”
adj + noun
08. optical fibers
09. optical properties
Real-World Examples
“Kyla Black, Boots Opticians’ director of optical practice, said: “It isn’t worth taking the risk with your eyesight.” “By shining light on an atomically thin material cooled close to absolute zero, researchers uncovered optical signals that reveal not just where the electrons are, but how they move together.” Etymology
From optic + -al.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
NOUN
ADJECTIVE
ADVERB
Domain
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
- Frequency
- Common
- Level
- C1 · AdvancedOxford
- Updated
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QR code
englishreference.com/q/optical