square root

1. 1.

   a number that when multiplied by itself equals a given number

   Broaderroot

Questions about square root

What does square root mean?

square root means "a number that when multiplied by itself equals a given number".

Is square root a common word?

square root is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.