protrusions
Things sticking out
Protrusions are things that stick out from a surface or body.
The word covers anything that projects outward—bumps, bulges, knobs, or extensions: bony protrusions on the skull, rocky protrusions along the cliff face.
The term is neutral, describing shape rather than cause, and appears often in technical and medical contexts.
Something that extends outward
- outcroppingExposed rock formation
- overhangSection projecting beyond support
- jutExtend outward sharply
- elongationIncrease in length
outgrowth · appendage · offshoot · spur · arm · limb · branch · tendril
Shapeless solid mass
- bulgeOutward curved projection
- swellingAbnormal tissue enlargement
- knobRounded gripping fixture
- noduleRounded small lump
knot · hump · blister · welt · boil · pimple · cyst · papule
Vertical rock wall
- cragSteep rugged outcrop
- ledgeProjecting horizontal surface
- escarpmentSteep slope dividing elevations
- torHigh rocky outcrop
pinnacle · bluff · promontory · ridge · overhang · outcropping · rockface · buttress
Pointed plant projection
- spineColumn of vertebrae
- barbBackward-pointing spike
- quillFeather used for writing
- prickleTiny sharp point
spur · needle · prong · tine · point · bristle · spicule · awn
projection
Something that extends outward
- outcroppingExposed rock formation
- overhangSection projecting beyond support
- jutExtend outward sharply
elongation · outgrowth · appendage · offshoot · spur · arm · limb · branch · tendril · antenna
lump
Shapeless solid mass
nodule · knot · hump · blister · welt · boil · pimple · cyst · papule · carbuncle
cliff
Vertical rock wall
- cragSteep rugged outcrop
- ledgeProjecting horizontal surface
- escarpmentSteep slope dividing elevations
tor · pinnacle · bluff · promontory · ridge · overhang · outcropping · rockface · buttress · spur
thorn
Pointed plant projection
prickle · spur · needle · prong · tine · point · bristle · spicule · awn · fang
tumor
Abnormal tissue mass
nodule · fibroid · adenoma · lipoma · papilloma · neoplasm · carcinoma · sarcoma · excrescence · overgrowth
ledge
Projecting horizontal surface
corbel · sill · cantilever · balcony · eave · buttress · finial · gargoyle · parapet · molding
protrusionsindentations
Recessed marks in surfaces
depressions · cavities · recesses · hollows · concavities