מֶרְכָּב, riding seat, saddle, handle of the saddle, esp. (טומאת) מ׳ that degree of uncleanness which arises from an unclean man’s riding (Lev. XV, 9); unclean saddle. Tosef. Kel. B. Bath. II, 7; Erub. 27ᵃ האוכף טמא מושב והתפוס טמא מ׳ the saddle itself (on which an unclean man sat) is unclean as a seat, and its handle is unclean as a riding implement. Kel. I, 3. Zab. V, 8; a. fr.