[ 'pɛtɪəʊl ]
■ noun
1》 Botany the stalk that joins a leaf to a stem.
2》 Zoology a slender stalk between two structures, e.g. the abdomen and thorax of an insect.
Derivatives
petiolar adjective
petiolate -lət adjective
Origin
C18: from Fr. pétiole , from L. petiolus 'little foot, stalk'.