מְסַמָּא, (סָמָא) closing a cavity, אבן מ׳, v. אֶבֶן. Nidd. 69ᵇ באבן מ׳ when the apparent corpse lies on a stone under which there is a cavity; Sabb. 82ᵇ (Ms. M. מוסמא, v. Rabb. D. S. a. l. note). Sifra M’tsora, Zab., Par. 2, ch. III; a. fr.