terete
/təˈriːt
/adjective chiefly Botany
Cylindrical or slightly tapering, and without substantial furrows or ridges.As the leaf grows and becomes terete, the older leaf embraces it by the increasingly curved sheath....
- In addition, each lobe is somewhat twisted so that it gives the superficial impression of a terete structure that is stigmatic everywhere.
Origin
Early 17th century: from Latin teres, teret- 'rounded off'.