From Biology-Online Dictionary | Biology-Online Dictionary


1. Consisting of oil; containing oil; having the nature or qualities of oil; unctuous; oleaginous; as, oily matter or substance.

2. Covered with oil; greasy; hence, resembling oil; as, an oily appearance.

3. Smoothly subservient; supple; compliant; plausible; insinuating. This oily rascal. His oily compliance in all alterations.

(Science: botany) (Fuller) Oily grain, the sesame. Oily palm, the oil palm.

Origin: Oilier; Oiliest.