Noun
case sensitivity (usually uncountable, plural case sensitivities)
(programming) The characteristic of being case sensitive; having different reactions to typed letters based on whether the letters are uppercase or lowercase.
case-sensitivity (plural case-sensitivities)
(programming) The characteristic of being case sensitive; having different reactions to typed letters based on whether the letters are uppercase or lowercase.
case-sensitivity
Case sensitivity: Commands and intrinsic functions are case-insensitive. Source: Internet