"ˌ noun
Etymology: bi- (II) + conversion
: conversion of organic materials (as wastes) into an energy source (as methane) by processes (as fermentation) involving living organisms
"ˌ noun
Etymology: bi- (II) + conversion
: conversion of organic materials (as wastes) into an energy source (as methane) by processes (as fermentation) involving living organisms
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012