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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
| space station | |
| —n | |
| space platform, Also called: space laboratory any large manned artificial satellite designed to orbit the earth during a long period of time thus providing a base for scientific and medical research in space and a construction site, launch pad, and docking arrangements for spacecraft | |
A structure being assembled in space by an international partnership led by NASA. The space station will be a permanent habitat at which scientific and technological work can be carried out. Building a space station is considered the next step in the development and exploration of space, although there is controversy concerning its cost and the value of the research that will be carried out there.