This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Plural form of corpuscle.

"We are, however, possibly indebted to Professor J.J. Thomson for the most direct experimental evidence as to the atomic nature of electricity, for, as is well known to scientists, he has discovered what he termed corpuscles, in association with electricity, which he makes the carriers of the charges involved in electrical phenomena."