CX meaning in Medical ?

The circumflex is a diacritic in the Latin and Greek scripts that is used in the written forms of many languages and in various romanization and transcription schemes. It received its English name from Latin: circumflexus "bent around"—a translation of the Greek: περισπωμένη (perispōménē). The circumflex in the Latin script is chevron-shaped (ˆ), while the Greek circumflex may be displayed either like a tilde (˜) or like an inverted breve ( ̑ ).

In English, the circumflex, like other diacritics, is sometimes retained on loanwords that used it in the original language (for example, crème brûlée).

A similar symbol, the caret (‸) is used below the baseline in proofreading to indicate insertion. The freestanding circumflex (see below), ^, is used in computer programming (where it is given the name 'caret').

In mathematics and statistics, the circumflex is used to denote a function and is called a hat operator.