from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. babesia; a genre of hematozoa that invades the red blood cells of humans and domesticated animals such as dogs and sheep
from The Century Dictionary and Cyclopedia
- n. A genus of sporozoans, of the order Hæmosporidia. P. bigeminum is the parasite which causes Texas cattle-fever and is transmitted by the bites of ticks. Also Pyrosoma.
- n. [pl. piroplasmata (-ma-tä).] A protozoan of this genus.
From Latin pirum ("pear") + Ancient Greek πλάσμα (plasma, "image, formation") (Wiktionary)