fins
Aquatic steering appendages
Fins are the flat appendages fish use for swimming—steering, stabilizing, and propelling through water.
The concept extends to similar structures on other animals (dolphin fins, shark fins) and to fin-shaped equipment: the rubber fins swimmers wear on their feet, or the stabilizing surfaces on rockets and surfboards.
In slang, fins can mean hands or, in old American usage, five-dollar bills.
Foot-worn swim aids
- kickFoot-delivered strike
- propulsionForce driving movement forward
- strokeSudden brain blood blockage
- paddleFlat-bladed water tool
treading · swimmer · pool · laps · freestyle · butterfly · backstroke · breaststroke
Portable underwater breathing gear
- flippersFoot-worn swim aids
- snorkelUnderwater breathing pipe
- maskFace-worn concealment
- wetsuitInsulating garment for water
regulator · tank · buoyancy · underwater · reef · ocean · depths · exploration
Premature ending disclosure
- downforceAir pressing vehicle earthward
- airflowMovement of atmosphere
- dragResistance through fluid
- stabilityResistance to displacement
streamline · speed · turbulence · slipstream · vortex · rudder · stabilizer · tailfin
Heat transfer device
- condenserDevice that liquefies gases
- evaporatorLiquid-to-gas conversion device
- heatsinkPassive heat dispersal device
- airflowMovement of atmosphere
dissipation · thermal · aluminum · copper · fanless · passive · active · overheating
dorsal
Of the back
anal · tail · gills · scales · cartilaginous · bony · shark · ray · marine · aquatic
flippers
Foot-worn swim aids
- kickFoot-delivered strike
- propulsionForce driving movement forward
- strokeSudden brain blood blockage
paddle · treading · swimmer · pool · laps · freestyle · butterfly · backstroke · breaststroke · underwater
scuba
Portable underwater breathing gear
wetsuit · regulator · tank · buoyancy · underwater · reef · ocean · depths · exploration · neoprene
spoiler
Premature ending disclosure
stability · streamline · speed · turbulence · slipstream · vortex · rudder · stabilizer · tailfin · lift
radiator
Heat transfer device
- condenserDevice that liquefies gases
- evaporatorLiquid-to-gas conversion device
- heatsinkPassive heat dispersal device
airflow · dissipation · thermal · aluminum · copper · fanless · passive · active · overheating · GPU
wave
Oscillating motion through medium
fiberglass · template · swell · carve · cutback · barrel · turn · drive · rail · setup
fiver
Slang five-dollar note
- ocean thingsocean, wave, dolphin, whale, shell
- swimmingswimming, swimmer, swimmers, swim team, swim teams
- water sportsswimming, swimmer, surfing, surfer, diving
- animal adaptationscamouflage, webbed feet, filter feeding, thick fur, blubber
- divingscuba, scuba diving, dive mask, dive helmet, diving bells
- animal featuresbeaks, scales, antlers, fur, ears
- tail finRear swimming appendage
- fish fingersBreaded seafood portions
- dorsal finFish's rear stabilizer
- shark finsPredatory fish appendages
- swim finFoot blade for swimming
- fish finderSonar displaying underwater life
fin, finned, finning, dorsal fin, finfish, finlike, pectoral fin, pelvic fin