globule

1. N-COUNT Globules of a liquid or of a soft substance are tiny, round particles of it. 液滴; 小球[usu pl, oft N 'of' n]

...globules of saliva. ...一滴滴的唾液。

Our bone marrow contains fat in the form of small globules. 我们骨髓里有圆滴式的脂肪。