You searched for: “nauseant”
nauseant (s) (noun), nauseants (pl),
1. A medicine or agent that induces or causes diziness and vomiting.
2. Etymology: from Greek nausia, "seasickness, nausea, disgust" literally "ship-sickness," from naus, "ship".

Regardless of its etymology, nauseant never seems to have been applied only to seasickness.

This entry is located in the following units: -ant, -ants (page 7) naus-, nau-, naut-, -naut, -nautical, -nautics (page 2)