一粒[hitotsubu] (a) grain
一粒子既約[ichiryuushikiyaku] one particle irreducible (physics)
一粒種[hitotsubudane] an only child
雨粒[amatsubu] raindrop
穀粒[kokuryuu] kernel

素粒子[soryuushi] elementary particle
素粒子加速器[soryuushikasokuki] particle accelerator
大粒[ootsubu] large grain
長粒米[chouryuumai] long grain rice
麦粒腫[bakuryuushu] sty (on the eyelid)

顆粒[karyuu] granule
印顆[inka] stamp
顆粒剤[karyuuzai] granule
顆粒状[karyuujou] granular
顆粒性[karyuusei] granular

顆粒球減少症[karyuukyuugenshoushou] agranulocytosis
顆粒球[karyuukyuu] granulocyte
顆粒白血球[karyuuhakkekkyuu] granulocyte
顆粒層[karyuusou] granular layer