optical: [16] Greek optós meant ‘visible’ (it was presumably related to ophthalmós ‘eye’, source of English ophthalmic [17], and belonged to the general Indo-European family of ‘eye’/‘see’- words – including English eye itself – that goes back to the base *oqw-). From it was derived optikós, which has given English optic [16] and optical. Optician [17] originated as a French coinage. => ophthalmic
optical (adj.)
1560s, from optic + -al (1). Of abstract art, from 1964. Related: Optically.
雙語例句
1. Sloping walls on the bulk of the building create an optical illusion.
大樓主體的斜墻給人造成一種視錯覺。
來自柯林斯例句
2. The camera combines rugged reliability with unequalled optical performance and speed.
這款相機既堅固耐用，又有超凡的光學性能和快門速度。
來自柯林斯例句
3. These optical fibres may be used for new sorts of telephony.
這些光纜可以用于新型電話通訊系統。
來自柯林斯例句
4. optical instruments such as microscopes and telescopes
顯微鏡和望遠鏡等光學儀器
來自《權威詞典》
5. They concentrated on better definition of the optical image.