◎ 微粒 wēilì
[corpuscle;infinitesimal particle;fallout] 极细小的颗粒,包括肉眼看不到的分子、原子等

1.atom; mote; particulate; speck
2.【计】 corpuscle; fine grain
3.【医】 fine particle; microne; micronucleus; particle