meteoroid

As nouns the difference between plant and meteoroid

is that plant is an organism that is not an animal, especially an organism capable of photosynthesis typically a small or herbaceous organism of this kind, rather than a tree while meteoroid is (astronomy) a relatively small (sand- to boulder-sized) fragment of debris in a solar system that produces a meteor when it hits the atmosphere.

As a verb plant

is to place (a seed or plant) in soil or other substrate in order that it may live and grow.

As nouns the difference between meteors and meteoroid

is that meteors is plural of meteor while meteoroid is a relatively small (sand- to boulder-sized) fragment of debris in a solar system that produces a meteor when it hits the atmosphere.

As nouns the difference between meteoroid and ejecta

is that meteoroid is (astronomy) a relatively small (sand- to boulder-sized) fragment of debris in a solar system that produces a meteor when it hits the atmosphere while ejecta is pyroclast, tephra.

As a verb ejecta is

.

In astronomy|lang=en terms the difference between meteoroid and comet

is that meteoroid is (astronomy) a relatively small (sand- to boulder-sized) fragment of debris in a solar system that produces a meteor when it hits the atmosphere while comet is (astronomy) a celestial body consisting mainly of ice, dust and gas in a (usually very eccentric) orbit around the sun and having a "tail" of matter blown back from it by the solar wind as it approaches the sun.

As nouns the difference between meteoroid and comet

is that meteoroid is (astronomy) a relatively small (sand- to boulder-sized) fragment of debris in a solar system that produces a meteor when it hits the atmosphere while comet is (astronomy) a celestial body consisting mainly of ice, dust and gas in a (usually very eccentric) orbit around the sun and having a "tail" of matter blown back from it by the solar wind as it approaches the sun.