polacca /po-lakˈə/

1. A three-masted Mediterranean vessel, with fore- and mainmasts each in one piece (also polacre /po-läˈkər/)
2. A polonaise, or composition in the manner of a polonaise

• seisin
• seising
• seisins
• seism
• seismal
• seismic
• seismical
• seismically
• seismic array
• seismicities
• seismicity
• seismic prospecting
• seismic shock
• seismic wave
• seismism
• seismisms
• seismo-
• seismogram
• seismograms
• seismograph
• seismographer
• seismographers
• seismographic
• seismographical
• seismographies