大丸藥
Bolus \Bo"lus\, n.; pl. {Boluses}. [L. bolus bit, morsel; cf. G. ? lump of earth. See {Bole}, n., clay.] A rounded mass of anything, esp. a large pill.
bolus n 1: a small round soft mass (as of chewed food) 2: a large pill; used especially in veterinary medicine