Enter a clue or pattern or both:
The Clue
Column-shaft swelling (7 letter answer)
The Answer
ENTASIS
Tags
Notes
The answer ENTASIS is so rare that it appears less than once every 2500 puzzles.
Definition
ENTASIS as a noun:
1. a slight convexity in the shaft of a column; compensates for the illusion of concavity that viewers experience when the sides are perfectly straight