Top definition
A risingly popular Furry species which looks like a cyborg dragon without wings. According to winnie on Furry Amino, "Protogens were all born alongside each other, have similar markings and fur colours, and they all have names based on different coding languages."

Source: aminoapps.com/page/furry-amino/1744903/protogen-fursona-species-info
Steven: "Hey, what species is your fursona?"
Ryan: "It's a Protogen."
by Káz Namano July 23, 2017
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