Cross wires

fine wires made to traverse the field of view in a telescope, and moved by a screw with a graduated head, used for delicate astronomical observations; spider lines. Fixed cross wires are also used in microscopes, etc.

See also: Cross

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particulate impact analyzer
particulate inheritance
particulate inorganic carbon
particulate (insoluble) not otherwise specified
particulately
particulate marrow cancellous bone
particulate mass analyzer
particulate materials center
particulate materials research center
particulate matter
particulate matter 100 microm in aerodynamic diameter
particulate matter of 10 microns in diameter or smaller
particulate matter of 15 microns in diameter or smaller
particulate matter review panel
particulate matters research activities
particulate matter working group
particulate methane monooxygenase
particulate myocardial perfusion scintigraphy
particulate not otherwise regulated
particulate organic carbon
particulate organic matter
particulate organic nitrogen
particulate oxidation catalyst
particulate pollution
particulate polycyclic aromatic hydrocarbon

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