"Anthrozil" refers to a dragon-human hybrid—usually, anyone with at least one birth parent who is a dragon in human shape (though there are exceptions; see Listener and Karen & Charles Bannister below). Most of the anthrozils in the books are shown to have dragonlike abilities or traits, including superhuman intelligence, wings, the ability to breathe fire, danger sensing, eloquence, and -if present in the draconic parent- healing. The term was invented by Dr. Conner as a combination of the common prefix anthro meaning "man" and zil from "godzilla." Though it compares of dragons to monsters (which is especially cruel, considering that Dr. Conner's own wife and child had draconic blood) it is freely used by the anthrozils themselves.