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- pp. 56
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- mandibles 35
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- lead up to sth 81
- Words used to describe films 23
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- pride yourself on (doing) something 25
- gang-banger 23
- disapproving 352
- Courage 350
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- hullo 68
- abiding 202
- Animation 167
- abhorrent 162
- drab 193
- eastern 504
- Decay 138
- odour 560
- sentence 1023
- neuro- 189
- basket 195
- Permissive 26
- compressor 145
- harmful 623
- air strike 171
- rigatoni 65
- pension 523
- advocate 894
- segregated 63
- Magnetic 77
- abbreviated 517
- rise 1461
- elide 129
- discreditable 112
- for example 105
- disconcerting 185
- teamster 57
- Implicate 154
- underbrush 75
- Zeal 167
- correlate 512
- desolatingly 71
optics
op·tics /ˈɒptɪks $ ˈɑːp-/ noun [uncountableU]
the scientific study of light and the way we see 光学
n GRAMMAR: Singular or plural verb?
Optics is followed by a singular verb:
Optics is a branch of physics.
Examples from the Corpus
optics• Currently, there are more than 4,500 optics workers at Tucson's 136 optic firms.• Heat had intimate links with chemistry, and optics with astronomy.• All the substrates and optics for Mr Urvill's telescope were made here.• But fiber optics may change all that.• It was into bioengineering, lasers, fiber optics.• His optics are internationally recognised to be of the highest quality.• About 25 percent of these are New Economy companies, with only five involved directly in optics.• When we calculate the uncertainty in position, Ax, we use formulae for resolving power which are derived from wave optics.
op·tics noun →n GRAMMAR1
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