Definition

1. Verb:
   • To become liquid by absorbing moisture from the air: To melt or dissolve by absorbing water vapor from the atmosphere.
   • To melt away or disintegrate as part of a natural process of decay: To become soft, liquid, or decayed, often used in biological or chemical contexts.

Usage Examples

• Verb:
  • Certain salts, like calcium chloride, will deliquesce if left exposed to humid air.
  • The overripe fruit began to deliquesce into a sticky pulp.
  • In the damp forest, the fallen log slowly deliquesced over many years.

Advanced Usage

• Scientific/Technical Context: The term is often used in chemistry, mycology (the study of fungi), and materials science to describe a specific physical change.
  • The hygroscopic compound will deliquesce, forming a concentrated solution.
  • Some mushrooms, like ink caps, are known to deliquesce into a black, inky liquid as they mature.

Variants and Related Words

• Deliquescent (adj): Having the property of absorbing moisture from the air until dissolving.
  • Deliquescent salts require airtight storage.
• Deliquescence (n): The process of deliquescing.
  • The deliquescence of the specimen was observed under controlled humidity.

Synonyms

• Liquefy: To make or become liquid.
• Dissolve: To become incorporated into a liquid so as to form a solution.
• Melt: To change from a solid to a liquid state, usually by heat. (Note: "Deliquesce" specifically implies melting via atmospheric moisture, not heat).
• Decay: To rot or decompose.

Antonyms

• Solidify: To make or become hard or solid.
• Crystallize: To form crystals; to become definite and clear.
• Desiccate: To remove moisture from; to dry thoroughly.

Verb

1. melt or become liquid by absorbing moisture from the air
   • this type of salt deliquesces easily
2. melt away in the process of decay
   • The fungi eventually deliquesced