Ramsden circle
Optics
noun
The exit pupil of a telescope or microscope; the circle of least diameter of the bundle of rays leaving the eyepiece.
Origin
Late 19th century.
- pigmental
- pigmentally
- pigmentary
- pigmentation
- pigment epithelium
- pigment layer
- pigmentless
- pigmentocracy
- pigment printing
- pig metal
- laboratorian
- laboratory
- laboratory assistant
- laboratory bench
- laboratory chest
- laboratory conditions
- laboratory frame
- laboratory school
- laboratory system
- laboratory technician
- laboratory test
- labor bank
- labor bill
- labor book
- labor brigade