English dictionary
helicoid
/'h/E/l/@/,k//Oi//d/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
adjective
-
Spiral; curved, like the spire of a univalve shell.
Source: webster1913
noun
-
A warped surface which may be generated by a straight line moving in such a manner that every point of the line shall have a uniform motion in the direction of another fixed straight line, and at the same time a uniform angular motion about it.
Source: webster1913