燥

Dryness specifically resulting from heat or fire, implying a process of parching or scorching. This applies across several domains:

• Physical/Environmental: Aridity, scorched landscapes, or an atmosphere lacking humidity.
• Material State: The condition of being dried out, often to the point of brittleness; in technical, medical, or alchemical contexts, the removal of moisture via heat.
• Physiological: Parched skin or throat; generally a state of discomfort.
• Psychological: A disposition characterized by irritability, restlessness, or impatience (a "short fuse").

• Adjective: Describing a state (e.g., arid, parched).
• Verb: The action of drying out or making something brittle through heat.
• Noun: The quality or condition of dryness (common in medical contexts as a symptom).

• vs. 乾 (gān): While 乾 often denotes a neutral state of dryness (e.g., a dry cloth), 燥 implies an active, heat-driven condition.
• vs. 枯 (kū): 燥 refers to the lack of moisture; 枯 refers to the result of that lack—withering, death, or decay.
• vs. 渴 (kě): 渴 is the internal sensation of thirst; 燥 is more frequently the external condition or the physiological state of the tissue.

Fanqie reading: 蘇老; Tang-period reading: sɑ̌u.