GNU Collaborative International Dictionary of English

Found one definition

      
Softening, a. & n. from Soften, v.
1913 Webster
Softening of the brain, or Cerebral softening (Med.), a localized softening of the brain substance, due to hemorrhage or inflammation. Three varieties, distinguished by their color and representing different stages of the morbid process, are known respectively as red, yellow, and white, softening.
1913 Webster

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Ax, Fax, Lax, Pax, Sax, Tax, Wad, Wae, Wag, Wah, Wan, Wap, War, Was, Wax, Waxy, Way, Wex, Wox, Zax