01 adj. perceived with the eyes and sometimes with other senses; as, no explanation for the observed phenomena.
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1.
perceived with the eyes and sometimes with other senses; as, no explanation for the observed phenomena.
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2.
Detected by systematic scientific observation; as, variation in the observed flux may depend on a number of factors.
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3.
Perceived directly with the eyes; observed at first hand.
Syn.
ascertained. — Syn. -- seen, witnessed.