Biogeochemical cycle
biogeochemical cycle
biogeochemical cycle
(bī’ō-jē’ō-kěm’ĭ-kəl)
the flow of chemical elements and compounds between living organisms and the physical environment. chemicals absorbed or ingested by organisms are p-ssed through the food chain and returned to the soil, air, and water by such mechanisms as respiration, excretion, and decomposition. as an element moves through this cycle, it often forms compounds with other elements as a result of metabolic processes in living tissues and of natural reactions in the atmosphere, hydrosphere, or lithosphere. see more at carbon cycle, nitrogen cycle.
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- Biographee
the subject of a biography; the person whose life is described in a biography. noun a person whose biography has been written
- Biographer
a writer of someone’s biography. contemporary examples the perils of biography in the bradlee-himmelman storm lee siegel may 19, 2012 blake bailey: how i write noah charney march 19, 2013 three great men died that day: jfk, c.s. lewis, and aldous huxley john garth november 2, 2013 60-second guide to the n-bel lit winner lucas […]
- Biographic
of or relating to a person’s life: he’s gathering biographical data for his book on milton. pertaining to or containing biography: a biographical dictionary. historical examples sartor resartus thomas carlyle life of john keats william michael rossetti juggernaut george cary eggleston marriage and love emma goldman shakespeare and the modern stage sir sidney lee in […]
- Biographize
verb (transitive) to write a biography of (someone): the maverick duo were not easy to biographize
- Biohazardous
a pathogen, especially one used in or produced by biological research. the health risk posed by the possible release of such a pathogen into the environment. noun material of biological origin that is hazardous to humans n. biohazard (bī’ō-hāz’ərd) a biological agent, such as an infectious microorganism, that const-tutes a threat to humans or to […]