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Reverse Search
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| bioastronautics |
(used with a sing. verb) the science of the effects of outer space and space travel on living organisms. |
| celestial |
of or pertaining to the sky or outer space. [1/6 definitions] |
| cosmic rays |
streams of high-energy charged atomic nuclei or other particles that enter the earth's atmosphere from outer space. |
| ether |
outer space. [2/4 definitions] |
| life-support system |
the system of equipment in a spacecraft that keeps the occupants alive in outer space. [1/2 definitions] |
| meteorite |
a piece of rock originating from asteroids in outer space that has come through Earth's atmosphere and landed on the surface of this planet. |
| meteoroid |
matter, ranging in mass from a speck to thousands of tons, that travels through outer space and occasionally passes through the earth's atmosphere. |
| mission |
an individual or a team of people whose goal is to explore and gather information about a new territory or part of outer space, or a particular instance of travel and exploration by such people. [1/7 definitions] |
| outside |
on, in, or to the outer space of. [1/10 definitions] |
| space |
the area of the universe lying outside the earth's atmosphere and containing the stars, galaxies, and solar systems; outer space. [1/12 definitions] |
| spacecraft |
a vehicle designed to travel in outer space, beyond the earth's atmosphere. |
| spaceman |
a man who travels in outer space, beyond the earth's atmosphere; astronaut. [2 definitions] |
| spaceship |
a vehicle designed to carry people and cargo in outer space, as to the moon or the other planets. |
| spacesuit |
a pressurized protective suit enabling the wearer to survive in outer space. |
| spacewalk |
the action or an instance of an astronaut's moving about outside a spacecraft in outer space. [2 definitions] |
| spacewoman |
a female visitor to earth from outer space, as in science fiction. [1/2 definitions] |
| telescope |
an optical instrument, usu. cylindrical, that employs lenses and sometimes mirrors to enlarge the images of distant objects, esp. those in outer space. [1/7 definitions] |
| voyage |
an extensive journey by air, land, or sea, or through outer space. [1/4 definitions] |
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