case-sensitive - meaning and definition. What is case-sensitive
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Online Dictionary

What (who) is case-sensitive - definition

ONE OF TWO OPTIONS FOR TAKING INTO ACCOUNT ALL DIFFERENCES OF LETTER CASE WHEN COMPARING OR SEARCHING FOR TEXTS (EXAMPLE: CASE SENSITIVE COMPARISON OF "DOG" WITH "DOG" RETURNS "DIFFERENT")
Case-sensitive; Case sensitive; Smash case; Case-insensitive; Case Sensitivity; Case insensitive; Case insensitivity; Case insensitiv; Case sensitiv; Case-sensitiv; Case-insensitiv; Case-sensitivity; Case Sensitive

case-sensitive         
In computing, if a written word such as a password is case-sensitive, it must be written in a particular form, for example using all capital letters or all small letters, in order for the computer to recognize it. (COMPUTING)
ADJ
case-sensitive         
¦ adjective Computing differentiating between capital and lower-case letters.
case insensitive         

Wikipedia

Case sensitivity

In computers, case sensitivity defines whether uppercase and lowercase letters are treated as distinct (case-sensitive) or equivalent (case-insensitive). For instance, when users interested in learning about dogs search an e-book, "dog" and "Dog" are of the same significance to them. Thus, they request a case-insensitive search. But when they search an online encyclopedia for information about the United Nations, for example, or something with no ambiguity regarding capitalization and ambiguity between two or more terms cut down by capitalization, they may prefer a case-sensitive search.