pion

1. A semistable meson produced either in a neutral form with a mass 264 times that of an electron and a mean lifetime of 8.4 × 10-17 seconds or in a positively or negatively charged form with a mass 273 times that of an electron and a mean lifetime of 2.6 × 10-8 seconds. Also called pi meson. See Table at subatomic particle.

2. A meson that is a combination of up and down quarks and antiquarks, that may be positive, negative, or neutral, and that has a mass about 270 times that of the electron.

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Top Words by points	Points	Word Game
pion	6	Scrabble

2 Letters	Scrabble® Points
in	2
no	2
oi	2
on	2
op	4
pi	4
po	4

3 Letters	Scrabble® Points
ion	3
nip	5
pin	5
poi	5

4 Letters	Scrabble® Points
pion	6