intermediate between peat and bituminous coal | an airplane powered by one or more jet engines |
a carbonaceous material obtained by heating wood or other organic matter in the absence of air | an artificially produced flow of water |
| street names for ketamine |
| the occurrence of a sudden discharge (as of liquid) |
| atmospheric discharges (lasting 10 msec) bursting from the tops of giant storm clouds in blue cones that widen as they flash upward |
| a hard black form of lignite that takes a brilliant polish and is used in jewelry or ornamentation |