petroleum jelly - a semi-solid mixture of hydrocarbons obtained from petroleum; used in medicinal ointments and for lubricationcordite - explosive powder (nitroglycerin and guncotton and petrolatum) dissolved in acetone and dried and extruded in brown cords Vaseline - a trademarked brand of petroleum jelly mixture - (chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding) jelly - a substance having the consistency of semi-solid foods |