מְשַׁמֶּרֶת, (שָׁמַר Pa.) filter, strainer. Sabb. XX, 1 you may suspend (spread out) a strainer &c. Y. Ter. VIII, 45ᵈ המ׳ של יין a strainer filled with wine; a. fr.—Trnsf. Ab. V, 15 מ׳ a scholar retaining what is useless and discarding the useful knowledge.