dry rot
Refers to decay of wood or other organic material caused by fungi in dry conditions, as opposed to wet rot.
Dry rot can be seen in the pillars of this old house.
dry corrosion
Technical term for corrosion occurring without the presence of liquid water, often in high-temperature environments. Contrasts with 湿食 (wet corrosion).
See also: 湿食
Dry corrosion of metals at high temperatures proceeds by a different mechanism than wet corrosion.
Standard kanji spelling for dry rot and dry corrosion.
Alternate spelling using 蝕 (erosion/corrosion); less common but attested.
Compound of 乾 (dry) and 食 (eat/erode), literally 'dry eating', referring to decay or corrosion in dry conditions. The alternate form 乾蝕 uses 蝕 (erosion/corrosion) for a more explicit meaning.