The stone of certain fruits, such as the cherry.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "pyrene" in a sentence
"For example, the limit in fish of the PAH named benzo (a) pyrene is 35 parts per billion."
"One study measured the ability of vegetables to suppress the cancer-causing genetic damage of various environmental toxins, including benzo (a) pyrene (BaP) which is the main cancer-causing chemical in cigarette smoke and auto exhaust."
"Lange, “Presentation of Benzo(a)pyrene to Microsomal Enzymes by Asbestos Fibers in the Salmonella/Mammalian Microsome Mutagenicity Test,” Environmental Health Perspectives 51 (1983): 337–41."