|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|the offspring of a zebra and a donkey.|
biohazard bi·o·haz·ard (bī'ō-hāz'ərd)
A biological agent, such as a virus or a condition that constitutes a threat to humans, especially in biological research or experimentation.
The potential danger or harm from exposure to such an agent or condition.