Search Result：screw augur
screw augur 
(TTS Sound)
(TTS Sound)Overview of noun screw_augur
The noun screw augur has 1 sense
- screw augur, Spiranthes cernua -- (an orchid of the genus Spiranthes having tall erect densely flowered spiraling clusters of creamy white vanilla-scented flowers; widely distributed especially in low damp places of eastern and central North America)