Denshi Jisho — Online Japanese dictionary

一粒 ひとつぶ (a) grain
Noun 
一粒 ひとつぶだね an only child
Noun 
一粒選り ひとつぶえり careful selection
Noun 
一粒選り ひとつぶより careful selection
Noun 
一粒万倍 いちりゅうまんばい A single seed can eventually produce a great harvest; Even the smallest beginning can generate a greatest profit; Watch the pennies, and the pounds will look after themselves
Expression 
一粒子既約 いちりゅうしきやく one particle irreducible
Noun, Physics term 

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