giant molecular cloud
A cloud of molecular hydrogen typically located in the arm of a spiral galaxy, believed to be an area of active star formation. Protostars are located in the densest regions of such clouds. See more at protostar.
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Words nearby giant molecular cloud
giant hogweed, giant impact theory, giantism, giant kelp, giant killer, giant molecular cloud, giant otter, giant panda, giant peacock moth, giant petrel, giant planet
The American Heritage® Science Dictionary
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