Retinal nerve fibers exit the eye through the optic nerve, located nasally and on the same plane as the anatomical center of the retina. There is no retinal tissue overlying the optic nerve head. The optic nerve head or optic disc is oval in shape and measures approximately 1.75 mm. vertically and 1.5 mm horizontally.
Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning. the strength and power that are considered typical qualities of a man, especially sexual energy virility symbol: His car is a red turbo-charged Porsche, the classic virility symbol. Synonyms and related words. Physical strength:strength, force, energy...
virile You'll often hear the word virile referring to a manly, powerful man, because the word means having physical strength and other typical masculine qualities. When you think of a virile man, you imagine a tough, strong guy who's full of energy, vigor, and sexual potency. He's definitely not a wimp. Men admire him and women want to be with him. Superman is one guy who could easily be described as virile. The Man of Steel, with his muscles rippling under the S emblazoned on his costume, has superhuman strength and charm.