oil-immersion
adjective
(attributive) (of a lens or microscope) having a layer of oil between the objective and the specimen so as to increase the numerical aperture.
Origin
Late 19th century; earliest use found in Nature: a weekly journal of science.
- silver
- silver age
- silver anniversary
- silverback
- silver band
- silver beet
- silverberry
- silver birch
- silver bullet
- silver chloride
- silver city
- silver disc
- silver drummer
- silver-eared mesia
- silvereye
- silver fern
- silver fir
- silverfish
- silver fox
- silver gilt
- silver-haired
- silveriness
- silvering
- silver iodide
- silver jubilee