Noun. 1. moniker-a familiar name for a person (often a shortened version of a person's given name); Joe's mother would not use his nickname and always called him Joseph; Henry's nickname was Slim.byname, cognomen, nickname, sobriquet, soubriquet.oun. 1. moniker-a familiar name for a person (often a shortened version of a person's given name); Joe's mother would not use his nickname and always called him Joseph; Henry's nickname was Slim.
- Water activity is a better index for microbial growth than water content since microorganism only uses available water of the food sample. Some factors affecting the responses of microorganisms to water activity are the production of metabolites, taxonomic classification and solute concentration.
In addition to affecting how nutrients are dispensed to growing plants, pH levels also influence microorganic activity that contributes to the decomposition of organic materials. A neutral pH is ideal for microbial action that produces chemical changes in soil, making nitrogen, sulfur and phosphorus more available.