the lens or system of lenses in a telescope or microscope that is nearest the object being viewed
the goal intended to be attained (and which is believed to be attainable)
undistorted by emotion or personal bias; based on observable phenomena
emphasizing or expressing things as perceived without distortion of personal feelings, insertion of fictional matter, or interpretation
the lens or system of lenses in a telescope or microscope that is nearest the object being viewed
serving as or indicating the object of a verb or of certain prepositions and used for certain other purposes
a transparent optical device used to converge or diverge transmitted light and to form images
biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focuses light on the retina
electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons
