Definition

Noun: 1. Sodium Lauryl Sulfate: A synthetic, caustic detergent and surfactant. It is widely used in industrial cleaning products and, due to its foaming properties, is a common ingredient in many personal care items like shampoos, toothpastes, and soaps. It is known to be a potential skin irritant and should not be ingested.

Usage Examples

• Noun:
  • Many liquid soaps contain SLS to create a rich lather.
  • Some people with sensitive skin choose products that are SLS-free.
  • The safety data sheet warns that SLS can cause eye and skin irritation.

Advanced Usage

• Chemical Acronym: "SLS" is almost exclusively used as an initialism in consumer and industrial contexts to refer to the chemical compound Sodium Lauryl Sulfate. It is typically pronounced by saying each letter (S-L-S).
• In Formulations: Often listed on ingredient labels as "Sodium Lauryl Sulfate" or "SLS." The related compound "Sodium Laureth Sulfate" (SLES) is sometimes discussed alongside it.

Variants and Related Words

• Sodium Lauryl Sulfate: The full chemical name for SLS.
• SLES (Sodium Laureth Sulfate): A related surfactant often used for similar purposes, generally considered less irritating than SLS.
• Surfactant: A broader category of compounds that SLS belongs to, which reduce surface tension to help clean, foam, or emulsify.

Synonyms

• Detergent
• Surfactant
• Foaming agent

Notes on Meaning

• Primary Meaning: The term "SLS" has a very specific, technical meaning as a chemical compound. It is not used in general language outside of chemistry, manufacturing, or product labeling contexts.
• No Figurative Use: This term does not have idiomatic, phrasal verb, or figurative meanings. Its usage is strictly literal and technical.

Noun

1. a caustic detergent useful for removing grease; although commonly included in personal care items (shampoos and toothpastes etc.) it can irritate skin and should not be swallowed