different between radiation vs shadowgraph

English

Etymology

Borrowed from Latin radiatio, radiationis.Morphologically radiate +? -ion

Pronunciation

• IPA^(key): /??e?.di.?e?.??n/
• (some US dialects) IPA^(key): /?a?.di.?a?.??n/

Noun

radiation (countable and uncountable, plural radiations)

1. The shooting forth of anything from a point or surface, like diverging rays of light.

   heat radiation

   • 2016, Donald R. Prothero, The Princeton Field Guide to Prehistoric Mammals (page 136)

     The second [canid group] is the radiation of dogs in South America that began when the first canids arrived about 3 Ma, after crossing the Panama land bridge (Fig. 5.4).

2. The process of radiating waves or particles.
3. The transfer of energy via radiation (as opposed to convection or conduction).
4. Radioactive energy.

Related terms

• radiate

Derived terms

Translations

See also

• nucleomitophobia

Anagrams

• antiradio

French

Etymology

Borrowed from Latin radiatio, radiationem.

Pronunciation

• IPA^(key): /?a.dja.sj??/

Noun

radiation f (plural radiations)

1. radiation (all meaning)

Related terms

• radier

Further reading

• “radiation” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

English

Alternative forms

• shadow-graph, shadow graph

Etymology

From shadow +? -graph.

Noun

shadowgraph (plural shadowgraphs)

1. A shadow-picture; a radiograph or X-ray photograph; a sciagram.
2. (physics) An optical technique of visualizing patterns of fluid flow by using differences in refractive index

Derived terms

• shadowgraphic
• shadowgraphist
• shadowgraphy

Verb

shadowgraph (third-person singular simple present shadowgraphs, present participle shadowgraphing, simple past and past participle shadowgraphed)

1. (transitive) To outline in a shadow-picture on a screen.
2. (photography) To take a picture by means of X-ray, radium, or similar source of actinic radiation.