Black-light
invisible infrared or ultraviolet light.
Historical Examples
The Brain Alexander Blade
Legacy James H Schmitz
noun
the invisible electromagnetic radiation in the ultraviolet and infrared regions of the spectrum
black light
Invisible ultraviolet radiation. Black light causes certain fluorescent materials to emit visible light.
Read Also:
- Black-light-trap
a trap for insects that uses ultraviolet light as an attractant. Historical Examples Legacy James H Schmitz
- Black-liquor
(in making wood pulp for paper) the liquor that remains after digestion.
- Black--list
a list of persons under suspicion, disfavor, censure, etc.: His record as an anarchist put him on the government’s blacklist. a list privately exchanged among employers, containing the names of persons to be barred from employment because of untrustworthiness or for holding opinions considered undesirable. a list drawn up by a labor union, containing the […]
- Blacklist
a list of persons under suspicion, disfavor, censure, etc.: His record as an anarchist put him on the government’s blacklist. a list privately exchanged among employers, containing the names of persons to be barred from employment because of untrustworthiness or for holding opinions considered undesirable. a list drawn up by a labor union, containing the […]
- Black-locust
Also called false acacia, yellow locust. a North American tree, Robinia pseudoacacia, of the legume family, having pinnate leaves and clusters of fragrant white flowers. honey locust.