nonagon
/ˈnɒnəɡ(ə)n
/noun
A plane figure with nine straight sides and nine angles.The room is shaped as a large nonagon, its sheer walls, a flat metallic grey, rising almost two stories up and curving into a dome....
- What's the perimeter of a nonagon whose sides are each twice the length of the side of a square whose area is 16 square units?
Derivatives
nonagonal
Origin
Mid 17th century: formed irregularly from Latin nonus 'ninth', on the pattern of words such as hexagon.
- for my money
- for my (or his, her, etc.) part
- Fornax
- fornenst
- fornent
- fornicate
- fornication
- fornicator
- fornix
- fornix cerebri
- for nothing
- for now
- for old times' sake
- for once (or this once)
- for one
- for one's liking
- for one's pains
- for one's sins
- for one thing
- for openers
- for (or fo') shizzle
- for (or in) a coon's age
- for (or in) a good cause
- for (or on) hire
- for pity's sake