free-diving
Lungful-only deep swimming
Free-diving is underwater diving without breathing apparatus—the diver holds their breath for the entire descent and ascent.
Competitive free-divers train to reach extreme depths on a single breath, sometimes exceeding 100 meters.
The term distinguishes breath-hold diving from scuba diving, where tanks supply air.
Also spelled freediving.
Massive saltwater body
- underwaterBelow the surface
- coralMarine skeletal formation
- reefUnderwater rock or coral formation
- fishGilled aquatic vertebrate
dolphin · shark · manta · whale · sea · saltwater · currents · buoyancy
Temporary cessation of respiration
- breath-holdVoluntary suspension of respiration
- hypoxiaInsufficient tissue oxygenation
- diaphragmMuscle separating chest, abdomen
- bradycardiaAbnormally slow heart rate
equalization · breathlessness · respiration · exhale · inhale · hyperventilation · blackout · samba
Temporary cessation of respiration
- dynamicActive and changing
- staticWithout motion or change
- athleteSports competitor
- disciplineTrained self-control or specialty
personal-best · judge · lanyard · countdown · red-card
Downward slope or lineage
- pressureForce upon contact
- equalizationMaking things uniform
- fathomNautical depth unit
- abyssImmeasurably profound depth
darkness · compression · plunge · freefall · ascent · narcosis · squeeze · line
Insulating garment for water
Aquatic hunting with sharp poles
- explorationTraveling through unknown regions
- blue-waterOf the open ocean
- huntingPursuing wild game
- foragingSeeking wild food sources
travel · expedition · discovery · remote · pristine
Voluntary suspension of respiration
- tablesFlat-topped furniture pieces
- yogaMind-body exercise discipline
- meditationFocused attention practice
- relaxationState of being unwound
visualization · flexibility · fitness · stamina · technique · streamlining · finning · coaching
Emergency response hormone
- rushQuick sudden movement
- exhilarationIntense joyful excitement
- challengeTest of ability
- extremeFurthest from moderate
courage · daring · fear · excitement · achievement · euphoria · zen
ocean
Massive saltwater body
- underwaterBelow the surface
- coralMarine skeletal formation
- reefUnderwater rock or coral formation
fish · dolphin · shark · manta · whale · sea · saltwater · currents · buoyancy · visibility
apnea
Temporary cessation of respiration
- breath-holdVoluntary suspension of respiration
- hypoxiaInsufficient tissue oxygenation
- diaphragmMuscle separating chest, abdomen
bradycardia · equalization · breathlessness · respiration · exhale · inhale · hyperventilation · blackout · samba · packing
apnea
Temporary cessation of respiration
discipline · personal-best · judge · lanyard · countdown · red-card
descent
Downward slope or lineage
- pressureForce upon contact
- equalizationMaking things uniform
- fathomNautical depth unit
abyss · darkness · compression · plunge · freefall · ascent · narcosis · squeeze · line · lanyard
wetsuit
Insulating garment for water
spearfishing
Aquatic hunting with sharp poles
- explorationTraveling through unknown regions
- blue-waterOf the open ocean
- huntingPursuing wild game
foraging · travel · expedition · discovery · remote · pristine
breath-hold
Voluntary suspension of respiration
- tablesFlat-topped furniture pieces
- yogaMind-body exercise discipline
- meditationFocused attention practice
relaxation · visualization · flexibility · fitness · stamina · technique · streamlining · finning · coaching
adrenaline
Emergency response hormone
- rushQuick sudden movement
- exhilarationIntense joyful excitement
- challengeTest of ability
extreme · courage · daring · fear · excitement · achievement · euphoria · zen
free-divingscuba diving
Swimming with air tanks
scuba · saturation diving · technical diving · commercial diving · deep-sea diving