appendage
n.a part of a body that is attached to the main part, like an arm or a leg. It can also mean something extra that is added to a main object, like a small room or a note at the end of a book.
n.a part of an organism that is attached to the body but is not part of the main trunk; also, a supplementary part or feature added to a primary object. Often used in biological contexts to describe limbs or in technical contexts to describe supplementary structures.
“The insect has several long appendages for moving.”
“The architect designed a small glass appendage to the main house to serve as a sunroom.”
“While the primary structure of the molecule is stable, the presence of a reactive appendage allows it to bind more effectively to the target protein during the chemical reaction.”
“Most strikingly, however, segments 1–9 of the abdomen bore segmented appendages, with the posterior abdominal limbs modified into paddle-like structures.”
“Segments 1 through 9 carried segmented appendages, and the rear abdominal limbs had been modified into paddle-like structures.”
Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *(s)pend- Proto-Indo-European *(s)péndeti Proto-Italic *pendō Latin pendō Latin appendō Old French apendrebor. Middle English appenden English append Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-tós Proto-Indo-European *-eh₂tos Proto-Italic *-ātos Latin -ātus Proto-Indo-European *-kos Proto-Italic *-kos Latin -cus Latin -icus Latin -āticus Latin -āticum Old French -agebor. Middle English -age English -age English appendage From append + -age.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.