Definition that contains gills
- fish any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills
- ray cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins
- siren eellike aquatic North American salamander with small forelimbs and no hind limbs; have permanent external gills
- pint a British imperial capacity measure (liquid or dry) equal to 4 gills or 568.26 cubic centimeters
- lug marine worms having a row of tufted gills along each side of the back; often used for fishing bait
- sunfish small carnivorous freshwater percoid fishes of North America usually having a laterally compressed body and metallic luster: crappies; black bass; bluegills; pumpkinseed
- gilled provided with gills
- olm European aquatic salamander with permanent external gills that lives in caves
- abranchiate having no gills
- white matsutake a large white mushroom that develops brown stains as it ages; gills are white; odor is spicy and aromatic; collected commercially for oriental cooking the Pacific Northwest