axion /akˈsi-on/ (physics)

A hypothetical elementary particle

• beat off
• beat one's brains
• beat one's brains out
• beat one's breast
• beat out
• be at pains
• beats
• beats me
• beat someone's brains out
• be at someone's discretion
• be at someone's throat
• beat someone to it
• beat the air
• beat the band
• beat the bounds
• beat the clock
• beat the drum
• be at the expense of
• beat the gun
• beat the hell out of
• beat the living daylights out of
• beat the pants off
• beat the rap
• beat the retreat
• beat the socks off