[oh-puh n-ang-guh l] /ˈoʊ pənˌæŋ gəl/
Ophthalmology. See under .
[glaw-koh-muh, glou-] /glɔˈkoʊ mə, glaʊ-/
Ophthalmology. abnormally high fluid pressure in the eye, most commonly caused either by blockage of the channel through which aqueous humor drains (open-angle glaucoma or chronic glaucoma) or by pressure of the iris against the lens, which traps the aqueous humor (angle-closure glaucoma or acute glaucoma)
a disease of the eye in which pressure within the eyeball damages the optic disc, impairing vision, sometimes progressing to blindness
1640s, from Greek glaukoma “cataract, opacity of the lens” (cataracts and glaucoma not distinguished until c.1705), from -oma + glaukos, an adjective of uncertain origin (see glaucous).
open-angle glaucoma o·pen-an·gle glaucoma (ō’pən-āng’gəl)
Primary glaucoma in which the aqueous humor has free access to the trabecular reticulum. Also called simple glaucoma.
glaucoma glau·co·ma (glou-kō’mə, glô-)
Any of a group of eye diseases characterized by abnormally high intraocular fluid pressure, damaged optic disk, hardening of the eyeball, and partial to complete loss of vision.
glau·co’ma·tous (-kō’mə-təs) adj.
A disease of the eye in which the pressure of fluid inside the eyeball is abnormally high, caused by obstructed outflow of the fluid. The increased pressure can damage the optic nerve and lead to partial or complete loss of vision.
glaucoma [(glow-koh-muh, glaw-koh-muh)]
A disease of the eye marked by increased fluid pressure in the eyeball. Glaucoma can damage the optic nerve and may result in blindness if not treated. Surgery may be required for severe cases.
[oh-puh n-uh n-shuht] /ˈoʊ pən ənˈʃʌt/ adjective 1. immediately obvious upon consideration; easily decided: an open-and-shut case of murder. adjective 1. easily decided or solved; obvious: an open-and-shut case
- Open and aboveboard
Also, honest and aboveboard. Candid and fair, without deceit or trickery, as in I’ll join you, but only if everything remains open and aboveboard. Both versions of this expression are redundancies, since they use open and aboveboard in the sense of “honest.” The latter word, dating from the early 1600s, comes from gambling and alludes […]
[oh-puh n-air] /ˈoʊ pənˈɛər/ adjective 1. existing in, taking place in, or characteristic of the open air; outdoor: The orchestra gave three open-air concerts last summer. noun 1. the outdoors. noun 1.
noun 1. an arrangement in which contact is maintained or allowed between a child’s adoptive and biological parents.