Capsule
来自Big Physics
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late Middle English (in the general sense ‘small container’): via French from Latin capsula, diminutive of capsa (see case2).
wiktionary
Borrowed from French capsule, from Latin capsula, diminutive of capsa(“box”).
etymonline
capsule (n.)
"small case, natural or artificial," 1650s, from French capsule "a membranous sac" (16c.), from Latin capsula "small box or chest," diminutive of capsa "box, case, chest" (see case (n.2)). Medicinal sense is 1875; shortened form cap is from 1942. Sense in space capsule is first recorded 1954, perhaps from earlier sense "shell of a metallic cartridge" (1864). As an adjective from 1938. Related: Capsular.
