Irrotational is a 12 letter English word. It's valid Words with friends word worth 14 points.
You can make 457 anagrams from letters in irrotational (aaiilnoorrtt).
First recorded in 1870-75; ir-2 + rotational
A stream line is the line, straight or curved, traced by a particle in a current of fluid in irrotational movement.
A second-order effect on direction may therefore be produced by irrotational motion, but not a first-order effect.
It is important to distinguish between two types of strain: the “rotational” type and the “irrotational” type.
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