- (especially of certain bacteria) requiring only inorganic substances for growth.
- (of certain microorganisms) requiring no specific nutriments for growth.
Origin of prototrophic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for prototrophic
Thus arobes and facultative anarobes are prototrophic for O.
An organism which is capable of making use of an element in the free state is said to be prototrophic for that particular element.
- (esp of bacteria) feeding solely on inorganic matter
- (of cultured bacteria, fungi, etc) having no specific nutritional requirements
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012