What's the adjective from 'emit'? [closed]
I'd have to partly disagree with DavePhD.
There are at least three adjectival forms of the verb "emit". Emissive is used to the abstract concept of emission, as in the "emissive power" example given; however "radiation" in the OP's question would normally be described as "emitted", particularly in the concrete sense of describing a past event, so:
The laser was activated and the emitted radiation measured.
would be more natural than
The laser was activated and the emissive radiation measured.
Lastly, the example mentioned in comments still stands: an LED is a "light-emitting diode", so "x-emitting" is sometimes the correct adjective to use!
emissive:
having the power to radiate something, especially light, heat, or radiation
For example, from A Textbook on Heat Transfer, page 109:
The total hemispherical emissivity of a surface is the ratio of the total hemispherical emissive power of the surface to the total hemispherical emissive power of a black surface at the same temperature
The book uses the word "emissive" 11 times just on this one page!
Other examples:
A Metal Selective Microwave Emissive Detector for Gas Chromatography
The Visibitlity of the 10-CM Radio-Emissive Region and its Application in Finding the 10-CM Quiet Sun.
Broad Spectral Domain Fluorescence Wavelength Modulation of Visible and Near-Infrared Emissive Polymersomes
Investigation of ionic composition during expansion of laser-produced plasma by means of x-ray emissive spectroscopy and mass-spectroscopy methods
Plasma Potential Measurements by Electron Emissive Probes
Strongly emissive individual DNA-encapsulated Ag nanoclusters as single-molecule fluorophores
Stable Lanthanide Luminescence Agents Highly Emissive in Aqueous Solution: Multidentate 2-Hydroxyisophthalamide Complexes of Sm3+, Eu3+, Tb3+, Dy3+