The definition of metastasis is the movement of disease from one body part to another by way of the bloodstream or the lymph system. An example of metastasis is the spreading of cancer from one spot in the body to another. pl.
Pluto has a tilted orbit (compared with the average plane of the orbits of the other planets). Also, Pluto would be considered a terrestrial planet, but it is not now defi â¦ ned as a planet. It's just called a dwarf planet now.luto has a tilted orbit (compared with the average plane of the orbits of the other planets). Also, Pluto would be considered a terrestrial planet, but it is not now defi â¦ ned as a planet. It's just called a dwarf planet now.
Since its discovery in 1930, Pluto has been a bit of a puzzle: 1  It's smaller than any other planet -- even smaller than Earth 's moon. 2  It's dense and rocky, like the terrestrial planets (Mercury, Venus, Earth and Mars). 3  Pluto's orbit is erratic. 4  One of its moons, Charon, is about half Pluto's size.ere's how Resolution 5A defines a planet: Pluto is relatively round and orbits the sun, but it does not meet the criteria because its orbit crosses Neptune's orbit. Critics of the resolution argue that other planets in the solar system, including Earth, have not cleared the neighborhood around their orbits.