free-living

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free-living

(frē′lĭv′ĭng)
adj.
1. Given to self-indulgence.
2. Biology
a. Living independently of another organism; not part of a parasitic or symbiotic relationship.
b. Moving independently; not sessile.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.