micros

n. [ Micro- + -scope. ] An optical instrument, consisting of a lens, or combination of lenses, for making an enlarged image of an object which is too minute to be viewed by the naked eye. [ 1913 Webster ]

Compound microscope, an instrument consisting of a combination of lenses such that the image formed by the lens or set of lenses nearest the object (called the objective) is magnified by another lens called the ocular or eyepiece. --
Oxyhydrogen microscope, and
Solar microscope. See under Oxyhydrogen, and Solar. --
Simple microscope, or
Single microscope, a single convex lens used to magnify objects placed in its focus. [ 1913 Webster ]

a. Microscopic. [ R. ] Berkeley. [ 1913 Webster ]

{ } a. [ Cf. F. microscopique. ] [ 1913 Webster ]

1. Of or pertaining to the microscope or to microscopy; made with a microscope; as, microscopic observation. [ 1913 Webster ]

2. Able to see extremely minute objects. [ 1913 Webster ]

Why has not man a microscopic eye? Pope. [ 1913 Webster ]

3. Very small. Specifically, visible only by the aid of a microscope; as, a microscopic insect; also used figuratively; as, a microscopic advantage. [ 1913 Webster +PJC ]

adv. By the microscope; with minute inspection; in a microscopic manner. [ 1913 Webster ]

n. One skilled in, or given to, microscopy. [ 1913 Webster ]

n. The use of the microscope; investigation with the microscope. [ 1913 Webster ]

n. [ Micro- + Gr. &unr_; an earthquake, fr. &unr_; to shake. ] A feeble earth tremor not directly perceptible, but detected only by means of specially constructed apparatus. -- Mi`cro*seis"mic Mi`cro*seis"mic*al a. [ Webster 1913 Suppl. ]

n. [ Microseiem + -graph. ] A microseismometer; specif., a microseismometer producing a graphic record. [ Webster 1913 Suppl. ]