Chemolithotrophic
Part of speech: adjective
Definitions
- Describing organisms that obtain energy by oxidizing inorganic compounds to drive biochemical processes; relating to life forms that use chemical reactions involving minerals or inorganic substances as an energy source; pertaining to microbes that metabolize inorganic molecules to sustain growth and metabolism
- Referring to bacteria or archaea that utilize inorganic chemical compounds for energy rather than organic material, enabling autotrophic nutrition; characterizing life forms which rely on inorganic substances as electron donors to produce energy; describing the metabolic strategy of oxidizing minerals chemically to derive energy for biological functions
- Indicating a mode of metabolism in certain microorganisms where energy is harnessed by chemical oxidation of inorganic compounds without sunlight; denoting species that obtain energy from inorganic chemicals rather than organic nutrients; related to the biological process of lithotrophy involving inorganic chemical compounds as a primary energy source
Etymology: "Chemolithotrophic" is a plain technical coinage built from three Greek-derived pieces, and each one carries a distinct piece of the meaning. "Chemo-" comes from "chēmīa," the New Latin form of "chemistry," itself linked to Greek "khumeíā," which the Arabic "al-kīmiyāʔ" and Medieval Latin "alchēmia" passed along, so the first element is ultimately the alchemists' word. "Litho-" comes from Greek "lĭ́thos," meaning "stone," and "-trophic" comes from Greek "trophḗ," meaning "nourishment," from the verb "tréphō," "to nourish." Put together, the word literally describes feeding on chemicals and stones. The word is a modern scientific term, not an ancient one. The Greek roots were available to ancient writers, but nobody in antiquity used this combination; it was assembled by scientists in the modern era from classical building blocks, following the same method used for much of biological and chemical vocabulary.
Synonyms: chemolithoautotrophic