| Word | Definitions | Synonyms |
|---|---|---|
| globefish | (noun) any of numerous marine fishes whose elongated spiny body can inflate itself with water or air to form a globe; several species contain a potent nerve poison; closely related to spiny puffers | Synonyms: blowfish, puffer, pufferfish |
| lobefin | (noun) any fish of the order Crossopterygii; most known only in fossil form | Synonyms: crossopterygian, lobe-finned fish |