What is the X in X-mas?
"dissolution of cells, bacteria, etc.," 1902, from Latin lysis, from Greek lysis "a loosening," from lyein "to unfasten, loose, loosen, untie" (see lose).
scientific/medical word-forming element meaning "loosening, dissolving, dissolution," from Greek lysis "a loosening, setting free, releasing, dissolution," from lyein "to unfasten, loose, loosen, untie" (see lose).
lysis ly·sis (lī'sĭs)
n. pl. ly·ses (-sēz)
The gradual subsiding of the symptoms of an acute disease; a form of the recovery process.
The dissolution or destruction of cells, such as blood cells or bacteria, as by the action of a specific lysin.
Decomposition; dissolving; disintegration: hydrolysis.