As nouns the difference between arthropod and metasoma

is that arthropod is an invertebrate animal of the phylum arthropoda , characterized by a chitinous exoskeleton and multiple jointed appendages while metasoma is (biology) the posterior part of the body of an arthropod.

As an adjective extinct

is (dated) extinguished, no longer alight (of fire, candles etc).

As a noun mesonychid is

(biology) an extinct carnivore of the order (taxlink) .

As a proper noun carnivore

is a computer system designed by the fbi to monitor e-mail and electronic communications.

As a noun mesonychid is

(biology) an extinct carnivore of the order (taxlink) .

Cytosome is a synonym of cytoplasm.

As nouns the difference between cytoplasm and cytosome

is that cytoplasm is the contents of a cell except for the nucleus. It includes cytosol, organelles, vesicles, and the cytoskeleton while cytosome is the cytoplasm within a cell; the cell outside of the nucleus.

As a noun planet

is .

As an adjective extraplanetary is

originating, or located outside of a planet.

As adjectives the difference between extraterrestrial and extraplanetary

is that extraterrestrial is originating from outside of the earth's atmosphere, from space, or from another planet; alien to earth or its environment while extraplanetary is originating, or located outside of a planet.

As a noun extraterrestrial

is a being originating from outside of the earth's atmosphere, from space, or from another planet; an alien.

As a proper noun earth

is the third planet in order from the sun, upon which humans live represented in astronomy and astrology by.

As an adjective extraplanetary is

originating, or located outside of a planet.

Extraplanetary is a related term of interplanetary.

As adjectives the difference between interplanetary and extraplanetary

is that interplanetary is existing or occurring between planets while extraplanetary is originating, or located outside of a planet.

Extraplanetary is a related term of intraplanetary.

Intraplanetary is likely misspelled.

Intraplanetary has no English definition.

As an adjective extraplanetary is

originating, or located outside of a planet.

In mineralogy|lang=en terms the difference between quartz and quartzless

is that quartz is (mineralogy) the most abundant mineral on the earth's surface, of chemical composition silicon dioxide, si]][[oxygen|o₂ it occurs in a variety of forms, both crystalline and amorphous found in every environment while quartzless is (mineralogy) lacking quartz.

As a noun quartz

is (mineralogy) the most abundant mineral on the earth's surface, of chemical composition silicon dioxide, si]][[oxygen|o₂ it occurs in a variety of forms, both crystalline and amorphous found in every environment.

As an adjective quartzless is

(mineralogy) lacking quartz.