- atrociousFrightful, evil, cruel, or monstrous.
- atroxaseAn endopeptidase enzyme, found in the venom of the diamondback rattlesnake Crotalus atrox, that catalyzes the cleavage of His⁵-Leu, Ser⁹-His, His¹⁰-Leu, Ala¹⁴-Leu and Tyr¹⁶-Leu of insulin B chain.
- galatroxAn acidic galectin from Bothrops atrox snake venom