bi·o·tur·ba·tion (b   -t r-b  shn)n. The stirring or mixing of sediment or soil by organisms, especially by burrowing or boring. [German : bio-, bio- + Latin turb ti, turbtin-, disturbance (from turbtus, past participle of turbre, to stir up; see disturb).]bi o·turbed (-tûrbd) adj. |
| bioturbation (b-tr-bshn) The stirring or mixing of sediment or soil by organisms, especially by burrowing, boring, or ingestion. |
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