PETIOLE

'Petiole' may refer to:

★ Petiole (botany), the stalk of a leaf, attaching the blade to the stem; 'petiolate' leaves are ones where the tendril connects to the leaf before its apex

★ Petiole (insect) (also called a pedicel), the constricted first (and sometimes second) metasomal segment

★ Petiole (nest) is the supporting stalk of an insect nest such as a paper wasp nest

★ Various other natural structures, where there is a constricted "stalk"