PION

pion, pi-meson

(noun) a meson involved in holding the nucleus together; produced as the result of high-energy particle collision

Source: WordNet® 3.1

Etymology

Noun

pion (plural pions)

(particle) Any of three semistable mesons, having positive, negative or neutral charge, composed of up and down quarks/antiquarks.

Synonyms

• pi meson

Anagrams

• INOP, Pino

Source: Wiktionary

Piñ"on, n. [Sp. piñon.] (Bot.) (a) The edible seed of several species of pine; also, the tree producing such seeds, as Pinus Pinea of Southern Europe, and P. Parryana, cembroides, edulis, and monophylla, the nut pines of Western North America. (b) See Monkey's puzzle. [Written also pignon.]

Source: Webster’s Unabridged Dictionary 1913 Edition

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