pyrene

As nouns the difference between seed and pyrene

is that seed is (senseid)(countable) a fertilized grain, initially encased in a fruit, which may grow into a mature plant while pyrene is seed (of a fleshy fruit).

As a verb seed

is to plant or sow an area with seeds.

In chemistry terms the difference between pyrene and styrene

is that pyrene is a polycyclic aromatic hydrocarbon containing four fused benzene rings; first isolated from coal tar while styrene is an aromatic hydrocarbon, vinyl-benzene; a colourless, oily liquid, used in the manufacture of polymers such as polystyrene.

As nouns the difference between pyrene and pyrenae

is that pyrene is seed (of a fleshy fruit) while pyrenae is .

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.

As nouns the difference between pyrene and pyrone

is that pyrene is seed (of a fleshy fruit) while pyrone is (organic compound) any of a class of cyclic chemical compounds that contain an unsaturated six-membered ring with two double bonds, one oxygen atom and a ketone functional group.

As nouns the difference between pyrene and pyree

is that pyrene is seed (of a fleshy fruit) while pyree is (obsolete|rare) a temple devoted to fire among the ancient persians.

As nouns the difference between pyrena and pyrene

is that pyrena is (botany) a nutlet resembling a seed, or the kernel of a drupe while pyrene is seed (of a fleshy fruit).