lowers, diminishes, lessens, reduces, alters, neutralizes, suppresses, elevates, enhances, adjusts, determines, diffuses, negates, removes, restores, creates, eliminates, deprives, inflates, minimizes, optimizes, improves, relieves, modifies, boosts, precludes, insulates, multiplies, computes, nullifies, prevents, facilitates, eases, amplifies, subtracts, displaces, counteracts, dilutes, distorts, normalizes, protects, mitigates, erodes, restricts, apportions, demoralizes, depresses, applies, calculates, correlates, destroys, impedes, modulates, establishes, devalues, emasculates, strengthens, accumulates, allows, deducts, skews, stabilizes, ensures, deadens, stimulates, puts, penetrates, unsettles, disperses, abolishes, flattens, hinders, enriches, augments, constricts, entrenches, weakens, undermines, discourages, equals, lubricates, loosens, liberates, keeps, predetermines, affects, accelerates, fluctuates, heightens, obstructs, impoverishes, depletes, saturates, compensates, separates, erases, replicates, dissolves, sustains, actuates, curtails, consolidates

auditory tube, eustachian tube