hydroid
Tiny marine polyp
A hydroid is a small, typically colonial marine animal related to jellyfish and corals.
Most hydroids grow in branching, plant-like formations attached to rocks, shells, or seaweed, with individual polyps connected by shared tissue.
Some species alternate between attached polyp and free-swimming medusa stages.
The term also works as an adjective describing things resembling or relating to these organisms: hydroid colonies, hydroid polyps.
Flexible grasping appendage
- stingingCausing sharp pain
- retractableAble to draw inward
- graspSeize or understand
- neurotoxinPoison attacking neural tissue
barbed · trigger · harpoon · zooplankton · carnivorous · filter feeding · mouth
Fleshy membrane projection
- sessileAttached at base
- branchingSplitting into separate directions
- arborescentResembling a tree
- featheryLight and soft-textured
stalked · calyx · delicate · attached · anchored · upright · filamentous
Drifting marine stinger
- medusaFree-swimming cnidarian form
- Portuguese man o' warVenomous floating marine colony
- sea nettleStinging gelatinous marine animal
- stingingCausing sharp pain
gelatinous · bioluminescence · planktonic · invertebrate · venomous · translucent · pulsating · bell-shaped
Relating to the sea
- benthicOf the sea bottom
- substrateUnderlying supporting material
- reefUnderwater rock or coral formation
- pilingsEmbedded structural columns
seaweed · tidal · intertidal · subtidal · fouling · epiphytic · coastal · brackish
Dependent territorial settlement
- superorganismUnified colonial entity
- polymorphismMany forms, one interface
- stolonNode-sprouting ground stem
- clonalGenetically identical copies
dactylozooid · aggregate · division of labor · interconnected · communal · budding · modular
tentacle
Flexible grasping appendage
- stingingCausing sharp pain
- retractableAble to draw inward
- graspSeize or understand
neurotoxin · barbed · trigger · harpoon · zooplankton · carnivorous · filter feeding · mouth
polyp
Fleshy membrane projection
- sessileAttached at base
- branchingSplitting into separate directions
- arborescentResembling a tree
feathery · stalked · calyx · delicate · attached · anchored · upright · filamentous
jellyfish
Drifting marine stinger
- medusaFree-swimming cnidarian form
- Portuguese man o' warVenomous floating marine colony
- sea nettleStinging gelatinous marine animal
stinging · gelatinous · bioluminescence · planktonic · invertebrate · venomous · translucent · pulsating · bell-shaped · tentacled
marine
Relating to the sea
- benthicOf the sea bottom
- substrateUnderlying supporting material
- reefUnderwater rock or coral formation
pilings · seaweed · tidal · intertidal · subtidal · fouling · epiphytic · coastal · brackish · attached
colony
Dependent territorial settlement
- superorganismUnified colonial entity
- polymorphismMany forms, one interface
- stolonNode-sprouting ground stem
dactylozooid · clonal · aggregate · division of labor · interconnected · communal · budding · modular
budding
Developing from an outgrowth
regeneration · sexual · sperm · egg · brooding · release · proliferation
- hydrogen balloonBuoyant craft using lightest element
- hydrogen bombThermonuclear fusion weapon
- hydrogen peroxideOxidizing disinfectant and bleach
- hydroelectric damWater-powered generating station
- hydro powerEnergy from moving water
- hydroelectric powerEnergy from moving water
hydrozoa, hydrogen, hydro, anhydrous, hydrology, hydrolysis, hydroelectric, hydrodynamics, hydrodynamic