observational
UK/,ɒbzə'veɪʃənəl/US/,ɔbzә'veiʃәnәl/
C2
Definitions
adj.
Based on or relating to observation rather than experiment
观察的；基于观测的
Root Breakdown
Root-derivedobservationagainst, toward, in the way of
+
-alserve; keep, guard, watch over
=observational
observation + -al (adj.) = relating to observation. Common in research: an observational study watches without intervening. Points back to observation.
Example Sentences
- 1.
The findings come from an observational study, not a controlled trial.