cosmic ray
noun
Simple meaning
Any of a range of subatomic particles, and thus also electromagnetic waves.
Pronunciation
Say it like this:
kahzmihkraySay the bold part a little louder.
IPA pronunciation (US)
ˈkɑzmɪkɹeɪ
This word is pronounced essentially the same in American and British English, so one transcription covers both.
IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.
Definition
Everyday modern meanings first, grouped by part of speech.
noun
astronomy
Any of a range of subatomic particles, and thus also electromagnetic waves, that permeate the universe owing to their various origins within stars or from collisions outside stars. (Life on Earth is mostly shielded from them by the Earth's magnetic field, but a small amount strikes us all each day.)
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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.