meter-, metro-, metr-, -metrical, -metrically, -metron, -metric, -metrist, -meters, -metry, -metre

1. An instrument that uses the variations in light intensity produced by stained cell cytoplasm to identify and locate chemical compounds within cells.
2. A photometer that can be used to locate and identify chemical compounds in a cell by measuring the intensity of the light that passes through stained sections of the cytoplasm.

1. The study of chemical compounds inside a cell by means of a cytophotometer.
2. The study of cells and chemical compounds within cells by means of a cytophotometer.
3. A method of measuring the absorption of monochromatic light by stained microscopic structures; for examlple, chromosomes, nuclei, and whole cells, with the aid of a photoelectric cell.

Also used to measure emitted light from such objects by fluorescence in combination with selected fluorochrome dyes.

An instrument for ascertaining the deceleration of a moving body.

An instrument for measuring the diameters and heights of trees or logs, based on principles concerning the relation of the sides of similar triangles.

An instrument used to measure density or specific gravity.

An instrument for measuring optical density, e.g. that of a photographic negative.