noun which may take the genitive case particle 'no', noun
pea-sized; very small
Describes something about the size of a pea or bean; often used for small objects, swellings, or granular things.
豆粒大のあられが降ってきた。
Pea-sized hail started falling.
豆粒大の腫れが指にできた。
A pea-sized swelling appeared on my finger.
Means 'azuki-bean-sized', similar in scale but less common.
Compound of 豆粒 (まめつぶ, 'bean grain') and 大 (だい, 'size'). The reading だい is a common suffix for sizes.