ad'it us

An approach; an entrance, a. ad antrum. The rece of the tympanic cavity, which lodges the head of the malleus and the greater part of the incus. a. ad aquaeductum Sylvii. The entrance to the sylvian aqueduct, situated at the lower posterior angle of the third ventricle of the brain, a. ad infundibulum. A small canal leading from the third ventricle into the infundibulum. a. ad laryngem, a. laryngis. Upper aperture of larynx. [Lat, adire, to go to.] adjustment of setting (ad-just'ment). right, regulating,The arranging. proce Said of the mechanism for raising or lowering the tube of a compound microscope. It is coarse if the screw raises or lowers the tube quickly and fine if it raises or lowers it slowly. [Fr., adjuster, now a juster, to arrange.]