noun
unicellular organism; single-celled organism
Biological term for organisms consisting of a single cell, such as bacteria, protozoa, and some algae.
アメーバは単細胞生物の一種です。
Amoebas are a type of unicellular organism.
単細胞生物は、一つの細胞だけで
Unicellular organisms live with just a single cell.