01 a. Causing, or fitted to cause, nausea; sickening; loathsome; disgusting; exciting abhorrence; as, a nauseous drug or medicine.
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1.
Causing, or fitted to cause, nausea; sickening; loathsome; disgusting; exciting abhorrence; as, a nauseous drug or medicine.
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2.
Feeling nausea; as, nauseous from the effects of chemotherapy.“The nauseousness of such company disgusts a reasonable man.” — Dryden.