Dictionary > Gratings

Gratings

Grating
1. A partition, covering, or frame of parallel or cross bars; a latticework resembling a window grate; as, the grating of a prison or convent.
2. (Optics) a system of close equidistant and parallel lines lines or bars, especially lines ruled on a polished surface, used for producing spectra by diffraction; called also diffraction grating.
3. The strong wooden lattice used to cover a hatch, admitting light and air; also, a movable lattice used for the flooring of boats.
See: grate.

Last updated on January 18th, 2021

You will also like...

Stem

Stems

Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

Nephrolepis exaltata

Vascular Plants: Ferns and Relatives

Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..

IQ, Creativity and Learning

IQ, Creativity and Learning

Human intelligence provided the means to utilize abstract ideas and implement reasoning. This tutorial takes a further l..

Control of body movement

Control of Body Movement

Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..

Buttress roots

Roots

This study guide tackles plant roots in greater detail. It delves into the development of plant roots, the root structur..

Mātauranga Māori and Science Collaboration

Mātauranga Māori and Science

Mātauranga Māori is the living knowledge system of the indigenous people of New Zealand, including the relationships t..