1º_ Diacritic sign in the form of two horizontal points ( ? ) that in Spanish is used only in the syllables 'güe' and 'güi' to indicate that the /u/ is pronounced . See cream . It has a Greek origin in 948; 953; 945; 953; 961; 949; 963; 953; 962; ( diairesis "division, separation" ) . 2º_ In grammar it is the separation of two vowels that would normally form a diphthong. See diastole . 3º_ In surgery is the procedure to section tissues.
