зёрнышко означает в английский

grain [grains]▼(single seed of grain)
noun
[UK: ɡreɪn] [US: ˈɡreɪn]

granule [granules]▼(small particle)
noun
[UK: ˈɡræ.njuːl] [US: ˈɡræ.njəl]

kernel [kernels]▼(single seed of corn or wheat)
noun
[UK: ˈkɜːn.l̩] [US: ˈkɝː.nl̩]

pip [pips]▼(seed)
noun
[UK: pɪp] [US: ˈpɪp]

poppyseed▼(the seed of the poppy)
noun
[UK: pˈɒpisˌiːd] [US: pˈɑːpɪsˌiːd]