Any of a group of dabbling ducks having a characteristic pointed tail.

Any of the Sabellidae, a family of sedentary marine polychaete tube worms with the head mostly concealed by feathery branchiae.

plural of due date

American paddlefish (Polyodon spathula)

A theory of cognition according to which visual and verbal information are both used to represent information, but processed in different ways.

(uncountable) The control of a vehicle by either one of two people / (countable) The equipment that allows such control

plural of dual control

An exclamation of surprise.

(physics) In general relativity, an exact solution of the Einstein field equation in which the gravitational field is generated by dust rotating about an axis of cylindrical symmetry.

Alternative spelling of on duty