Terrestrial refers to things related to

land Land, also known as dry land, ground, or earth, is the solid terrestrial surface of the planet Earth that is not submerged by the ocean or other bodies of water. It makes up 29% of Earth's surface and includes the continents and various islan ...

or the planet Earth. Terrestrial may also refer to: * Terrestrial animal, an animal that lives on land opposed to living in water, or sometimes an animal that lives on or near the ground, as opposed to arboreal life (in trees) ** A fishing fly that simulates the appearance of a land insect is referred to as a terrestrial fly. *

Terrestrial ecoregion An ecoregion (ecological region) or ecozone (ecological zone) is an ecology, ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large a ...

, land ecoregions, as distinct from freshwater ecoregions and marine ecoregions *

Terrestrial ecosystem Terrestrial ecosystems are ecosystems which are found on land. Examples include tundra, taiga, temperate deciduous forest, tropical rain forest, grassland, deserts. Terrestrial ecosystems differ from aquatic ecosystems by the predominant presence ...

, an ecosystem found only on landforms * Terrestrial gamma-ray flash, a burst of gamma rays produced in Earth's atmosphere *

Terrestrial locomotion Terrestrial locomotion has evolved as animals adapted from aquatic to terrestrial environments. Locomotion on land raises different problems than that in water, with reduced friction being replaced by the increased effects of gravity. As viewed ...

, evolutionary adaptation from aquatic types of locomotion * Terrestrial plant, a plant that grows on land rather than in water or on rocks or trees * Terrestrial planet, a planet that is primarily composed of silicate rocks, and thus "Earth-like" *

Terrestrial radio Radio broadcasting is transmission of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio sta ...

, radio signals received through a conventional aerial, as opposed to satellite radio * Terrestrial radiation, due to the insolation of heat by the earth surface, earth re-radiates the heat to the atmosphere in the form of long waves * Terrestrial reconnaissance, a type of reconnaissance that is employed along the elements of ground warfare * Terrestrial reference frame, the reference frame as one views from earth * Terrestrial television, television signals received through a conventional aerial, as opposed to satellite television or cable television * Terrestrial Time, an astronomical time standard *

Terrestrial Trunked Radio Terrestrial Trunked Radio (TETRA; formerly known as Trans-European Trunked Radio), a European standard for a trunked radio system, is a professional mobile radio and two-way transceiver specification. TETRA was specifically designed for use by go ...

, a specialist walkie talkie standard used by police departments, fire departments, ambulance services and the military * Cretaceous Terrestrial Revolution, the intense diversification of land animals

See also