Term	Acronym	Vocabulary	Vocabulary Type	Preferred Term	Definitions	
Summary of Ecotox Data on Ethoxylated Surfactants	ETHOX		Abbreviation and Acronym List			
Surfactant		Terms of Environment 	Glossary and Key Word List		Definition: A detergent compound that promotes lathering.
	
Surfactant		Glossary: Study of the Potential Impacts of Hydraulic Fracturing on Drinking Water Resources 	Glossary and Key Word List		Definition: Used during the hydraulic fracturing process to decrease liquid surface tension and improve fluid passage through the pipes.
	
Surfactant		I-BEAM Glossary of Terms 	Glossary and Key Word List		Definition 1: Surface active agent used in detergents to cause lathering.
Definition 2: Surface active agent that cleans.
	
Surfactant		Drinking Water Technical &Legal Terms 	Glossary and Key Word List		Definition: (sir-FAC-tent) Abbreviation for surface-active agent. The active agent in detergents that possesses a high cleaning ability.
	
Surfactant		Pesticides Glossary 	Glossary and Key Word List		Definition: A detergent compound that promotes lathering.
	
Surfactant		EPA EV-Chemical Substances-Chemical Roles 	Taxonomy		Definition 1: Used during the hydraulic fracturing process to decrease liquid surface tension and improve fluid passage through the pipes. [EPA Study of the Potential Impacts of Hydraulic Fracturing on Drinking Water Resources: Progress Report at http://www.epa.gov/hfstudy/pdfs/hf-report20121214.pdf]
Definition 2: Abbreviation for surface-active agent. The active agent in detergents that possesses a high cleaning ability. [Drinking Water Technical &Legal]
Definition 3: A detergent compound that promotes lathering. [Terms of Environment][Pesticides Glossary]
Definition 4: Methylene blue active substances amendable to measurement by the method described in “Methods for Chemical Analysis of Water and Wastes,” 1971, Environmental Protection Agency, Analytical Quality Control Laboratory, page 131. [40 CFR 417.91 (CFR 2017)]
Definition 5: Organic substance and/or preparation which has surface-active properties and which consists of one or more hydrophilic and one or more hydrophobic groups of such a nature and size that it is capable of reducing the surface tension of water, and of forming spreading or adsorption monolayers at the water-air interface, and of forming emulsions and/or microemulsions and/or micelles, and of adsorption at water-solid interfaces. Surfactants may also be used for purposes other than detergents such as emulsifiers, foaming agents, wetting agents, and stabilizers for dispersions. [EPA's Safer Choice Standard (February 2015) https://www.epa.gov/sites/default/files/2013-12/documents/standard-for-safer-products.pdf]