Having the form or shape of a columella; shaped like a small column.
From 'columella' + Latin '-formis' meaning 'having the form of.' The '-form' ending is used to describe things that resemble other things structurally.
The '-form' suffix creates a whole universe of shape-related words: columelliform, columnar, cylindrical—biologists essentially invented a shape language before photography could actually show these tiny structures.
Complete word intelligence in one call. Free tier — 50 lookups/day.