noun, plural pro·to·zo·a [proh-tuh-zoh-uh] /ˌproʊ təˈzoʊ ə/.
Origin of protozoon
Examples from the Web for protozoon
Unfortunately it is the philosopher, not the protozoon, who gives us this assurance.In the Mountains|Elizabeth von Arnim
This protozoon secretes a shell about itself which has a characteristic shape, and often carries spines.A Critique of the Theory of Evolution|Thomas Hunt Morgan
Now, if so, how long would it take to obtain an elephant from a protozoon or even from a tadpole-like fish?Life and Habit|Samuel Butler
You put the difficulty of the first modification of the first protozoon admirably.More Letters of Charles Darwin|Charles Darwin