knuckleball

As a noun knuckleball

is (baseball) a pitch thrown with the ball gripped on the fingertips and released with no rotation which travels over an unpredictable path to the plate due to micro-turbulence in the air.

As a verb knuckleball

is (baseball) to pitch knuckleballs.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between knuckleball and splitter

is that knuckleball is a pitch thrown with the ball gripped on the fingertips and released with no rotation which travels over an unpredictable path to the plate due to micro-turbulence in the air while splitter is a person or a thing that splits.

As a verb knuckleball

is to pitch knuckleballs.

As a noun knuckleball is

(baseball) a pitch thrown with the ball gripped on the fingertips and released with no rotation which travels over an unpredictable path to the plate due to micro-turbulence in the air.

As a verb knuckleball is

(baseball) to pitch knuckleballs.

is likely misspelled.

has no English definition.

As a noun knuckleball

is a pitch thrown with the ball gripped on the fingertips and released with no rotation which travels over an unpredictable path to the plate due to micro-turbulence in the air.

As a verb knuckleball

is to pitch knuckleballs.

As nouns the difference between taxonomy and knuckleball

is that taxonomy is the science or the technique used to make a classification while knuckleball is (baseball) a pitch thrown with the ball gripped on the fingertips and released with no rotation which travels over an unpredictable path to the plate due to micro-turbulence in the air.

As a verb knuckleball is

(baseball) to pitch knuckleballs.