appendage
Arm or leg
An appendage is something attached to a larger or more important thing.
The term applies to body parts that project from the trunk—arms, legs, tails, antennae: The creature's appendages flailed in the water.
It extends to anything subsidiary or supplementary: The garage was a later appendage to the house.
Calling something an appendage often implies it's secondary or dispensable.
Upper body limb
Part extending outward
- outgrowthSomething developing from another
- extensionAdded part or duration
- projectionSomething that extends outward
- processSteps toward a result
lobe · tubercle · spine · spur · horn · tusk · barbel · gill
Joining quantities mathematically
- adjunctSubordinate addition to something
- accessorySupplementary addition
- addendumSupplementary text at end
- annexSupplementary building or seizure
supplement · extension · extra · accompaniment · auxiliary · subsidiary · secondary · peripheral
arm
Upper body limb
hand · foot · tentacle · flipper · fin · wing · tail · claw · paw · hoof
protrusion
Part extending outward
- outgrowthSomething developing from another
- extensionAdded part or duration
- projectionSomething that extends outward
process · lobe · tubercle · spine · spur · horn · tusk · barbel · gill · flagellum
addition
Joining quantities mathematically
- adjunctSubordinate addition to something
- accessorySupplementary addition
- addendumSupplementary text at end
annex · supplement · extension · extra · accompaniment · auxiliary · subsidiary · secondary · peripheral · ancillary
dependent
Requiring outside support
- underlingPerson of lower rank
- hanger-onOpportunistic social dependent
- followerOne who supports another
sidekick · lackey · minion · satellite · attendant · auxiliary · retainer · associate · aide · assistant
appendageessential
Fundamentally necessary
necessity · requirement · requisite · fundamental · mainstay