Of, relating to, or having the nature of a conoid; cone-shaped in a specific mathematical sense.
From conoid + -ic (adjective suffix meaning 'of or relating to'). This is an alternate adjectival form using the -ic suffix instead of -al, common in specialized mathematical and scientific terminology.
The existence of both 'conoidal' and 'conoidic' shows how English steals different adjective suffixes from different languages—-al comes from Latin while -ic can come from Greek, and specialists use both!
Complete word intelligence in one call. Free tier — 50 lookups/day.