עַכְבָּר, (b. h.) mouse. Ḥull. IX, 6 ע׳ שחציו בשר וכ׳ a mouse which is half flesh and half earth (it being believed that there is a species of mice developing from earth, v. Maim. a. l.). Ib. 126ᵇ ע׳ שבים sea-mouse (name of a fish). Hor. 13ᵃ האוכל ממה שע׳ אוכל וכ׳ he who eats what a mouse has been gnawing at, will lose his memory; a. fr.—Pl. עַכְבָּרִים, עַכְבָּרִין. Ib. Sabb. 151ᵇ. Pes. 10ᵇ; a. e.