philosophical oil
now historical
noun
A pure or essential oil; specifically = brick-oil.
Origin
Mid 18th century.
- surface condensation
- surface condenser
- surface contact
- surface-couched
- surface couching
- surface crossing
- surfaced
- surface damage
- surface density
- surface effect
- surface energy
- surface film
- surface find
- surface friction
- surface gage
- surface gauge
- surface grammar
- surface grinder
- surface-grinding machine
- surface grub
- surface-harden
- surface-hardened
- surface hardening
- surface integral
- surfaceless