gen·too penguin 
(jĕnt′)
(jĕnt′)n.
A penguin (Pygoscelis papua) of Antarctic and subantarctic regions, having a white patch or band above the eye and a reddish-orange bill.
[Perhaps from alteration (influenced by earlier English Johnny penguin, gentoo penguin) of Spanish juanito, gentoo penguin, after Juanito, diminutive of the name Juan, John (perhaps used in Spanish to translate English Johnny penguin if the English itself is not a translation of the Spanish).]
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- perfluorocarbon
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