thornapple

any of the poisonous plants constituting the genus Datura, the species of which bear capsules covered with prickly spines, as the common thornapple, Datura stramonium, an annual herb with hairy, lobed leaves and white or pale lavender flowers, widespread in Australia.

lagan

wreckage or goods from a ship lying on the seabed. The goods are sometimes attached to a buoy, etc., to aid recovery.

propaedeutic

relating to or of the nature of preliminary instruction.

headhunting

(among certain tribal peoples) the practice of severing the heads of enemies as trophies or for use in religious ceremonies.

rallycross

a motor race or a series of races on a closed circuit on different types of road surfaces as dirt, clay or bitumen.

calciferol

vitamin D2; a fat-soluble, crystalline alcohol, found in milk and fish-liver oils and produced by the activation of ergosterol by ultraviolet irradiation.

antechamber

a chamber or an apartment through which access is had to a principal apartment.

undercover

working or done out of public sight; secret.

coryphaeus

the leader of the chorus in the ancient Greek drama.

spanker

the lower fore-and-aft sail on the aftermost mast of a ship or barque.