Top definition
A phenotype is a physical trait which can be seen from the outside, eg blonde hair, blue eyes.

A genotype can not be seen from the outside and is purely genetic, eg. Blood Type A
Jock: Look at that hot gurl!
Nerd: Never seen phenotypes like that b4!
by Paixx May 30, 2015
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2
my phenotype is a leopard.
by No one May 30, 2003
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3
Has really nothing to with science, but really is a genetic disease that pedophiles get from perving on old people instead of children.
"I think my stalker Aflred has Phenotype. He always used to watch me go on my school bus, but now he doesn't."
by PaaskeAeg March 28, 2010
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