\Cir"cum*flex\, n. [L. circumflexus a bending round,
fr. circumflectere, circumflexum, to bend or turn about;
circum + flectere to bend. See {Flexible}.]
1. A wave of the voice embracing both a rise and fall or a
   fall and a rise on the same a syllable. --Walker.
2. 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.

\Cir"cum*flex\, v. t. [imp. & p. p. {Circumflexed};
p. pr. & vb. n. {Circumflexing}.]
To mark or pronounce with a circumflex. --Walker.

\Cir"cum*flex\, a. [Cf. L. circumflexus, p. p.]
1. Moving or turning round; circuitous. [R.] --Swift.
2. (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.