Antiprotozoal

Part of speech: adjective

Definitions

1. A type of agent that is employed to inhibit or eliminate the effects of protozoan infections in humans or animals
2. A pharmacological compound utilized to thwart the proliferation of protozoa that cause various diseases
3. A substance used to treat diseases caused by protozoan organisms by preventing their growth or destroying them

Etymology: "Antiprotozoal" is a plain modern compound, built from "anti-" and "protozoal," the adjective from "protozoan." The prefix "anti-" comes from the Ancient Greek "anti," meaning "against" or "opposite to," which English has used in countless formations since classical times. "Protozoan" itself was coined in the 19th century from Greek roots meaning "first animal," a name for the single-celled organisms that scientists first grouped as a distinct class of life. Put together, the word describes anything that works against those single-celled parasites, such as a drug that treats malaria or sleeping sickness. Its meaning is transparent from its parts, so it reads as a technical label rather than a word with a dramatic past. Its value lies in precision: it names a whole category of medicines in a single term.