appendage
n. countablen. 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.
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.