circumflex

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of several marks, especially ( ^ ), used over a vowel in certain languages or in phonetic keys to indicate quality of pronunciation.
• adjective Having this mark.
• adjective Curving around.

from The Century Dictionary.

• To pronounce with the accent or intonation called the circumflex.
• To mark or designate with the sign of such accentuation.
• Moved or turned round.
• Curved; winding about: used in anatomy in the specific description of several parts. See below.
• Pronounced with or indicating the tone called circumflex.
• Marked with the accentual sign designating such pronunciation.
• Of the thigh, one of two branches, anterior and posterior, of the profunda femoris artery, supplying muscles of the thigh.
• noun A certain accent or tone of voice in the utterance of a syllable, consisting in a higher or acute tone followed by a lower or grave tone within the same syllable.
• noun The sign used to mark a vowel so accented.
• noun The same mark (ˆ, ⌢, ˜) used as the sign of a long vowel in certain languages, and as a diacritical mark in phonetic notation.
• noun In elocution, a combined rising and falling or falling and rising inflection on a word or syllable, to express surprise, mockery, etc.

from the GNU version of the Collaborative International Dictionary of English.

• noun A wave of the voice embracing both a rise and fall or a fall and a rise on the same a syllable.
• noun A character, or accent, denoting in Greek a rise and of the voice on the same long syllable, marked thus [~ or �]; and in Latin and some other languages, denoting a long and contracted syllable, marked [� or ^]. See Accent, n., 2.
• transitive verb To mark or pronounce with a circumflex.
• adjective rare Moving or turning round; circuitous.
• adjective (Anat.) Curved circularly; -- applied to several arteries of the hip and thigh, to arteries, veins, and a nerve of the shoulder, and to other parts.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun orthography A diacritical mark: 〈ˆ〉 placed over a vowel in certain languages to change its pronunciation; also used in combination with certain consonants in Esperanto to create additional letters.
• adjective Having this mark.
• adjective Curving around

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a diacritical mark (^) placed above a vowel in some languages to indicate a special phonetic quality