stearic

/sti'ærik/

Thân thiện

Stearic acid is a common fatty acid found in animal fats.

Definition

1. Adjective:
   • Relating to or derived from fat, specifically stearin: The term "stearic" describes something that is of, relating to, or composed of fat, particularly the solid portion of animal or vegetable fat. It is most commonly used in chemistry to refer to compounds derived from this source.

Usage

• The word "stearic" is a technical adjective used primarily in chemistry and manufacturing contexts. It modifies nouns to indicate a relationship to the fatty substance stearin or to stearic acid.
• Example: "The stearic component of the oil was isolated for analysis."

Examples

• Adjective:
  • The candle's hardness is due to its high stearic content.
  • Stearic acid is a common saturated fatty acid found in animal and vegetable fats.
  • Researchers studied the stearic derivatives in the new polymer.

Advanced Usage

• "stearic acid": This is the most frequent compound term. It refers to a specific long-chain saturated fatty acid (C₁₇H₃₅COOH), a white, waxy solid used in making soaps, candles, and plastics.
  • Stearic acid is often used as a hardening agent in candle production.

Variants and Related Words

• Stearin (noun): The solid, crystalline form of a fat, especially a glyceride of stearic acid.
  • The stearin was separated from the liquid olein.
• Stearate (noun): A salt or ester of stearic acid.
  • Magnesium stearate is used as a lubricant in pharmaceutical tablets.

Synonyms

• Fatty: Pertaining to, containing, or derived from fat (a broader, less specific term).
• Adipic: Relating to adipic acid, a different type of dicarboxylic acid derived from fats (a more specific, different compound).

Notes on Meaning

• The word "stearic" is almost exclusively used in scientific and industrial contexts. Its everyday usage is rare outside of specific compound terms like "stearic acid." It does not have idiomatic or phrasal verb uses.

Học thuật

Adjective

1. of or relating to or composed of fat