(transitive) To make ill. / (intransitive) To become ill. / (transitive) To fill with disgust or abhorrence. / (sports) To lower the standing of. / (intransitive) To be filled with disgust or abhorrence.

present participle of sicken

Causing sickness or disgust. / (LGBT slang) Amazing, fantastic.

The act of making somebody sick.

Disgusted or revolted.

simple past tense and past participle of sicken

Third-person singular simple present indicative form of sicken

One who, or that which, sickens. / A small, bright red and possibly poisonous russula or brittlegill (Russula emetica).

plural of sickener

plural of sickening