spi·roid 
(spīroid′)
(spīroid′)adj.
Resembling a spiral.
- subcartilaginous
- subcategory
- subcelestial
- subcellular
- subchaser
- subclass
- subclavian
- subclavian artery
- subclavian vein
- subclimactic
- subclimax
- subclinical
- subclinically
- subcommittee
- subcompact
- subcomponent
- subconference
- subconscious
- subconsciously
- subconsciousness
- subcontinent
- subcontinental
- subcontract
- subcontractor
- subcontrary