tetra-, tetr-

(Greek: four; a number used as a prefix)

tetrodotoxinism, tetraodontoxism, fugu poisoning, puffer poisoning, tetraodon poisoning
Poisoning from ingestion of improperly prepared puffer fish.

The clinical signs include tingling of the lips and tongue, motor incoordination, numbness of the skin, salivation, muscle weakness, generalized paralysis, and death.

tetrotus
A deformed fetus with two faces, four eyes, and four ears.
tetroxide

Cross references of word families that are related, partially or totally, to: "four, fourth": quadri-; quatr-; tessara-.