no·vac·u·lite 
(nō-văkyə-līt′)
(nō-văkyə-līt′)n.
A very hard, dense, even-textured, silica-bearing sedimentary rock used in whetstones.
[Latin novācula, razor + -ITE1.]
- Oscar Fingal O'Flahertie Wills
- Oscar Palmer
- Osceola
- oscillate
- oscillating circuit
- oscillating universe
- oscillation
- oscillational
- oscillator
- oscillatory
- oscillogram
- oscillograph
- oscillographic
- oscillographically
- oscillography
- oscillon
- oscilloscope
- oscilloscopic
- oscine
- oscitance
- oscitancy
- oscitant
- Osco-Umbrian
- oscula
- oscular