Salaries. The U.S. Bureau of Labor Statistics provides salary data for both optometrists and physicians. According to its May 2011 figures, the average income for optometrists was $107,720 per year. That same figure, for physicians and surgeons, was $184,650.
In phonetics, a vowel is a sound in spoken language, with two competing definitions. In the more common phonetic definition, a vowel is a sound pronounced with an open vocal tract, so that the tongue does not touch the lips, teeth, or roof of the mouth, such as the English ah /ÉË/ or oh /oÊ/. There is no build-up of air pressure at any point above the glottis.
vowel noun [C]. âº writing a âspeech âsound âproduced by âhuman âbeings when the âbreath âflows out through the âmouth without being âblocked by the âteeth, âtongue, or âlips âº writing A vowel is also a âletter that ârepresents a âsound âproduced in this way: The vowels in âEnglish are a, e, i, o, u, and sometimes y.