Library / English Dictionary

PYRENE

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

The small hard nutlet of a drupe or drupelet; the seed and the hard endocarp that surrounds it

Classified under:

Nouns denoting plants

Hypernyms ("pyrene" is a kind of...):

nutlet (a small nut)

Sense 2

Meaning:

A pale yellow crystalline hydrocarbon C16H10 extracted from coal tar

Classified under:

Nouns denoting substances

Hypernyms ("pyrene" is a kind of...):

hydrocarbon (an organic compound containing only carbon and hydrogen)

Credits

 Context examples: 

Cyclopenta[c,d]pyrene is primarily found in gasoline engine exhaust.

(Cyclopenta[cd]pyrene, NCI Thesaurus)

Dibenzo[a,e]pyrene is primarily found in coal gasification products, cigarette smoke and fossil fuels.

(Dibenzo (a,l) pyrene, NCI Thesaurus)

Dibenzo[a,h]pyrene is primarily found in engine exhaust, cigarette tar and coal tar pitch.

(Dibenzo[a,h]pyrene, NCI Thesaurus)

Indene[1,2,3-cd]pyrene is primarily found in certain foods, gasoline and diesel exhaust, cigarette smoke, coal tar and coal tar pitch, soot and petroleum asphalt.

(Indeno[1,2,3-cd]pyrene, NCI Thesaurus)