“+ adjective
Etymology: inter- + planetary
: existing, carried on, or operating between planets
the density of hydrogen in interplanetary and interstellar space — Science
“+ adjective
Etymology: inter- + planetary
: existing, carried on, or operating between planets
the density of hydrogen in interplanetary and interstellar space — Science
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012