(anatomy) Relating to the cerebrum and the cranium

(inorganic chemistry) Any anion derived from beryllate by replacing an oxygen atom with two of fluorine, but especially the anion BF₄²⁻; any salt containing such an anion

Affected with tuberculosis.

Any engine that generates thrust by expelling matter, especially hot gases produced by igniting a fuel; either a rocket engine or several types of jet engine.