Medical Definition of PUMICE. : a volcanic glass full of cavities and very light in weight used especially in powder form for smoothing and polishing. a volcanic glass full of cavities and very low in density that is used especially in powder form for smoothing and polishing. â puÂ·miÂ·ceous \pyue-pyÃ¼-Ëmi, shÉs-\ ËpÉ. Adjective see pumice defined For-english language. learners
Another thing that differs between the two planets is the direction of their rotation. Venus s rotation takes longer than a year and it rotates backwards. Note that a rotation is when an object spins once on its own axis.Our planet takes only 24 hours, or one full Earth day, to rotate on its axis and a year to revolve around the Sun. Venus, however, takes 243 days to turn one time on its axis and almost 225 days to revolve around the Sun in orbit.nother thing that differs between the two planets is the direction of their rotation. Venus s rotation takes longer than a year and it rotates backwards. Note that a rotation is when an object spins once on its own axis.
Venus orbits the sun in approximately 225 Earth days. (224.70069 days) Strange as it may seem, Venus rotates so slowly that a day on Venus is longer than its year. It take â¦ s Venus about 243 Earth days to spin once on its axis.The slow rotation is also in a retrograde (clockwise) direction, from east to west.how long does it take for venus to orbit the sun.224.70069 days) Strange as it may seem, Venus rotates so slowly that a day on Venus is longer than its year. It take â¦ s Venus about 243 Earth days to spin once on its axis. The slow rotation is also in a retrograde (clockwise) direction, from east to west. how long does it take for venus to orbit the sun.