You can overdose on coffee if you drink about 30 cups in a brief period to get close to a lethal dosage of caffeine.
operculum
(noun) a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted
Source: WordNet® 3.1
opercula
plural of operculum
Source: Wiktionary
O*per"cu*la, n. pl.
Definition: See Operculum.
O*per"cu*lum, n.; pl. L. Opercula, E. Operculums. Etym: [L., a cover or lid, fr. operire to cover.]
1. (Bot.) (a) The lid of a pitcherform leaf. (b) The lid of the urnlike capsule of mosses.
2. (Anat.) (a) Any lidlike or operculiform process or part; as, the opercula of a dental follicle. (b) The fold of integument, usually supported by bony plates, which protects the gills of most fishes and some amphibians; the gill cover; the gill lid. (c) The principal opercular bone in the upper and posterior part of the gill cover.
3. (Zoöl.) (a) The lid closing the aperture of various species of shells, as the common whelk. See Illust. of Gastropoda. (b) Any lid-shaped structure closing the aperture of a tube or shell.
Source: Webster’s Unabridged Dictionary 1913 Edition
29 March 2024
(adjective) tending to make moral judgments or judgments based on personal opinions; “a counselor tries not to be faultfinding”
You can overdose on coffee if you drink about 30 cups in a brief period to get close to a lethal dosage of caffeine.