microphagist|maɪˈkrɒfədʒɪst| [f.Gr. µῑκρό-ς small + ϕαγ-, ϕαγεῖν to eat + -ist.] An eater of microscopic organisms. 1853W. Smith Brit. Diatom. I. p. xxxiii, Several species [of diatoms]..have been supplied in abundance by a careful dissection of the above microphagists.