One who overdoses.

Excessively doped.

Documented to an excessive degree.

Excessive dosage; taking too much of a pharmaceutical drug.

The state of a gene wherein a heterozygote has a higher risk disease than either of its homozygote parents. / Excessive dominance.

plural of overdot

A dot placed above a letter, as a diacritical mark.

(transitive) To place a dot over.

Third-person singular simple present indicative form of overdoss

simple past tense and past participle of overdoss