suborbital

[suhb-awr-bi-tl]
adjective
1.
(of a spacecraft) not in orbit; not achieving an altitude and velocity resulting in a ballistic trajectory circling the earth at least once.
2.
Anatomy. situated below the orbit of the eye.

Origin:
1815–25; sub- + orbital

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Collins
World English Dictionary
suborbital (sʌbˈɔːbɪtəl)
 
adj
1.  (of a rocket, missile, etc) having a flight path that is less than one complete orbit of the earth or other celestial body
2.  anatomy situated beneath the orbit of the eye

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American Heritage
Medical Dictionary

suborbital sub·or·bit·al (sŭb-ôr'bĭ-tl)
adj.
Situated on or below the floor of the orbit of the eye. n.
A suborbital part, such as a bone, nerve, or cartilage.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
They have yielded a wealth of advances, including precision timepieces,
  unpickable locks and private suborbital joyrides.
Suborbital and orbital development activity is thriving.
Others envision space planes handling a variety of tasks from rapid package
  delivery to suborbital microgravity experiments.
Other companies are focusing on suborbital tourist flights, which provide
  several minutes of weightlessness and stunning views.
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