abduct  To move apart, separate

absolute voice rest  Total silence of the phonatory system

Adam’s apple  Prominence of the thyroid cartilage, primarily in males

adduct  To bring together, to approximate

antagonist (muscle)  An opposing muscle

anterior  Toward the front

anterior commissure  The junction of the vocal folds in the front of the larynx

antibiotic  Drug used to combat infection (bodily invasion by a living organism such as a bacteria or virus)

aphonia  The absence of vocal fold vibration; this term is commonly used to describe people who have “lost their voice” after vocal fold injury.  In most cases, such patients have very poor vibration, rather than no vibration; and they typically have a harsh, nearly whispered voice

articulation  Shaping of vocal tract by positioning of lower jaw, tongue body and tip, velum, epiglottis, pharyngeal sidewalls, and larynx

arytenoid cartilages  Paired, ladle-shaped cartilages to which the vocal folds are attached

aspirate  "Hah".  Speech sound characterized by breathiness