Definition of petiolar in English:

petiolar

Pronunciation /ˌpēdēˈōlər/ /ˌpidiˈoʊlər/

adjective

Botany

See petiole

‘In the wine grapevine Vitis vinifera ‘Merlot’, poor growth during establishment and variable yields in mature plants grown in many South Australian vineyards is positively correlated with reduced petiolar molybdenum levels.’
  • ‘Earlier studies have shown that the retarding effect of low petiolar temperatures on sucrose transport through sugar beet (Beta vulgaris L.) petioles is markedly time-dependent.’