optical
(adjective) of or relating to or involving light or optics; “optical supplies”
ocular, optic, optical, visual
(adjective) relating to or using sight; “ocular inspection”; “an optical illusion”; “visual powers”; “visual navigation”
ocular, optic, optical, ophthalmic
(adjective) of or relating to or resembling the eye; “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”; “ophthalmic defect”
Source: WordNet® 3.1
optical (comparative more optical, superlative most optical)
Of, or relating to sight; visual.
Designed to assist or enhance sight
Of, or relating to optics.
Of, or relating to visible light.
Incorporating light-sensitive devices.
• Capitol, capitol, coalpit, lipcoat, pit coal, topical
Source: Wiktionary
Op"tic, Op"tic*al, a. Etym: [F. optique, Gr. oculus eye. See Ocular, Eye, and cf. Canopy, Ophthalmia.]
1. Of or pertaining to vision or sight. The moon, whose orb Through optic glass the Tuscan artist views. Milton.
2. Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina. See Illust. of Brain, and Eye.
3. Relating to the science of optics; as, optical works. Optic angle (Opt.), the angle included between the optic axes of the two eyes when directed to the same point; -- sometimes called binocular parallax.
– Optic axis. (Opt.) (a) A line drawn through the center of the eye perpendicular to its anterior and posterior surfaces. In a normal eye it is in the direction of the optic axis that objects are most distinctly seen. (b) The line in a doubly refracting crystal, in the direction of which no double refraction occurs. A uniaxial crystal has one such line, a biaxial crystal has two.
– Optical circle (Opt.), a graduated circle used for the measurement of angles in optical experiments.
– Optical square, a surveyor's instrument with reflectors for laying off right angles.
Source: Webster’s Unabridged Dictionary 1913 Edition
25 December 2024
(adjective) having or exhibiting a single clearly defined meaning; “As a horror, apartheid...is absolutely unambiguous”- Mario Vargas Llosa
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