A freshwater bird, Podiceps nigricollis, of the grebe family (Podicipedidae)

The nape, back of the neck.

Pressure that is less than normal atmospheric pressure

The removal of a discouraging stimulus associated with a particular behaviour with the result that it is more likely to be repeated.

(dated) Interactive digital media, such as the Internet, as opposed to traditional media such as print and television.

An adult leaf of an adult pine tree.

(historical) Western New Guinea from 1945 to 1962, when it was under Dutch rule.

A city southwest of Athens in the Attica prefecture Greece

Alternative spelling of Nea Smyrni

A metal ring worn around one's neck, used as jewelry.