The Game » Glossary

Here you can find a glossary of bowlingterms sorted by alphabet. You can choose a letter of the alphabet by clicking on one of the letters in the menu below. He and his should be read as 'he and his or she and her' throughout this glossary.

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• Mark
  A strike or a spare. Also the point on the lane at which the bowler is aiming.

• Mass bias
  Weight in a particular area of the ball.

• Midline
  Line that perpendicularly bisects the center line of the grip. A horizontal line halfway between the fingers and thumb.

• Midplane
  See vertical axis line.

• Miss
  A failed spare. Also known as blow or error.

• Moment of inertia
  Amount of force required to spin an object. Mathematically, it is equal to the mass times the distance squared. The further the mass is away from the rotation point the harder it is to rotate (or to slow down for that matter). It is interchangeable with radius of gyration as far as the effect to the ball reaction.

• Mule ears
  This is the 7,10 split.