Mahe PS lies with in North Malabar area of Kerala State and on the National High way No.17, Border of the PS are Thalassery PS on North, Chockli PS on South and Edacherry PS on East and Arabian Sea on West. AREA: 3 Sq. KMs.
aperture apÂ·erÂ·ture (Äp'Ér-chÉr) n. An opening, such as a hole, gap, or slit. A usually adjustable opening in an optical instrument, such as a microscope, a camera, or a telescope, that limits the amount of light passing through a lens or onto a mirror. The diameter of such an opening. The diameter of the objective of a telescope or microscope.
Medical Definition of LENS. 1. : a curved piece of glass or plastic used singly or combined in eyeglasses or an optical instrument (as a microscope) for forming an image by focusing rays of light.2.: a device for directing or focusing radiation other than light (as sound waves, radio microwaves, or electrons).3.. : a curved piece of glass or plastic used singly or combined in eyeglasses or an optical instrument (as a microscope) for forming an image by focusing rays of light. 2.