In singular and plural. The science of optics, esp. (in later use) as used in assisting sight. Obsolete.
| 单词 | θ64723 |
| 释义 | the world > physical sensation > sight and vision > optical skills and techniques > [noun] (36) perspectivea1387 In singular and plural. The science of optics, esp. (in later use) as used in assisting sight. Obsolete. optic1563 = optics, n. Obsolete. optics1579 The branch of physics that deals with the properties and phenomena of visible light (and by extension other forms of electromagnetic radiation)… Subcategories:— use of instruments (17) — shadow-casting (2) — optical scanning (6) — other techniques (7) — optical exhibition (1) |
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