| actinide | (noun) any of a series of radioactive elements with atomic numbers 89 through 103 | Synonyms: actinoid, actinon |
|---|
| clinid | (noun) mostly small blennioid fishes of coral reefs and seagrass beds | Synonyms: clinid fish |
|---|
| cyprinid | (noun) soft-finned mainly freshwater fishes typically having toothless jaws and cycloid scales | Synonyms: cyprinid fish |
|---|
| encainide | (noun) antiarrhythmic drug (trade name Enkaid) used to treat life-threatening arrhythmias but increases the risk of sudden death in heart attack patients | Synonyms: Enkaid |
|---|
| flecainide | (noun) oral antiarrhythmic medication (trade name Tambocor) used as a last resort in treating arrhythmias; increases the risk of sudden death in heart attack patients | Synonyms: Tambocor |
|---|
| hominid | (noun) a primate of the family Hominidae | - |
|---|
| quinidine | (noun) cardiac drug (trade names Quinidex and Quinora) used to treat certain heart arrhythmias | Synonyms: Quinidex, Quinora |
|---|
| teredinid | (noun) wormlike marine bivalve that bores into wooden piers and ships by means of drill-like shells | Synonyms: shipworm |
|---|
| tocainide | (noun) antiarrhythmic drug (trade name Tonocard) used to treat ventricular arrhythmias when less dangerous drugs have failed | Synonyms: Tonocard |
|---|
| transactinide | (noun) any of the artificially produced elements with atomic numbers greater than 103 | - |
|---|