interplanetary

[in-ter-plan-i-ter-ee]

adjective

being or occurring between the planets or between a planet and the sun.

Origin of interplanetary

First recorded in 1685–95; inter- + planetary

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for interplanetary

Contemporary Examples of interplanetary

The plan is to mine asteroids to be used on Earth and for interplanetary travel.
James Cameron and Investors Seek to Lasso and Mine an Asteroid
Vivien Marx
April 24, 2012
But a vast amount of it will be spent in interplanetary doldrums, waiting to arrive at the destination.
How Space Agencies Are Preparing for a Mission to Mars
Josh Dzieza
February 12, 2011

Historical Examples of interplanetary

I like interplanetary stories, if not written too far into the future.
Astounding Stories of Super-Science, November, 1930
Various
But that's what makes these interplanetary movies great stuff.
Reel Life Films
Samuel Kimball Merwin
The thing had already caused some interplanetary complications.
Astounding Stories of Super-Science, March 1930
Various
Without it, interplanetary flight would have been impossible.
Astounding Stories of Super-Science April 1930
Various
He couldn't tell an interplanetary ship from an interstellar.
Runaway
William Morrison

British Dictionary definitions for interplanetary

interplanetary

adjective

of, relating to, or existing between planets

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for interplanetary

adj.

1690s, "existing between planets," from inter- + planetary. In reference to travel between planets, attested from 1897.