autotrophic fixation — the cyclic mechanism whereby carbon dioxide is fixed into organic linkage by autotrophic organisms, e.g., plants and autotrophic bacteria … Medical dictionary
autotrophic — 1. Self nourishing. The ability of an organism to produce food from inorganic compounds. 2. Pertaining to an autotroph. * * * au·to·tro·phic .ȯt ə trō fik adj 1) needing only carbon dioxide or carbonates as a source of carbon and a simple… … Medical dictionary
autotrophic — lithotrophic; adj. describing organisms (known as autotrophs) that synthesize their organic materials from carbon dioxide and nitrates or ammonium compounds, using an external source of energy. Photoautotrophic organisms, including green plants… … The new mediacal dictionary
plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… … Universalium
Aquatic ecosystem — An aquatic ecosystem is an ecosystem located in water bodies. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are marine ecosystems and… … Wikipedia
digestion — digestional, adj. /di jes cheuhn, duy /, n. 1. the process in the alimentary canal by which food is broken up physically, as by the action of the teeth, and chemically, as by the action of enzymes, and converted into a substance suitable for… … Universalium
nutrition — nutritional, nutritionary, adj. nutritionally, adv. /nooh trish euhn, nyooh /, n. 1. the act or process of nourishing or of being nourished. 2. the science or study of, or a course of study in, nutrition, esp. of humans. 3. the process by which… … Universalium
Carbonate platform — A carbonate platform is a sedimentary body which possesses topographic relief, and is composed of autochthonous calcareous deposits (Wilson, 1975). Platform growth is mediated by sessile organisms whose skeletons build up the reef or by organisms … Wikipedia
Simultaneous nitrification-denitrification — (SNdN) is a wastewater treatment process. Microbial simultaneous nitrification denitrification is the conversion of the ammonium ion to nitrogen gas in a single bioreactor. The process is dependent on floc characteristics, reaction kinetics, mass … Wikipedia
taxonomy — taxonomic /tak seuh nom ik/, taxonomical, adj. taxonomically, adv. taxonomist, taxonomer, n. /tak son euh mee/, n. 1. the science or technique of classification. 2. Biol. the science dealing with the description, identification, naming, and… … Universalium
