As nouns the difference between pyrene and gyrene
is that pyrene is a polycyclic aromatic hydrocarbon containing four fused benzene rings; first isolated from coal tar while gyrene is a member of the United States Marine Corps.
pyrene
Etymology 1
From .
Noun
(
en noun)
(chemistry) A polycyclic aromatic hydrocarbon containing four fused benzene rings; first isolated from coal tar
Derived terms
* polypyrene
* pyrenic
Etymology 2
From (etyl) .
Noun
(
en noun)
(botany) the stone of a drupe
gyrene
Noun
(
en noun)
(informal) A member of the United States Marine Corps.