(drama) A hero who suffers from a tragic flaw that eventually causes his downfall.

(cognitive science) A binary waveform representation of neuronal activity, where an action potential is represented as a single 1 separated from others by a stream of zeros.

(business, finance) An area on a trading floor that is a focus for trading certain items, often specially furnished with equipment or taking the shape of a small amphitheatre.

(business, finance) An indoor space in which exchanges of standardized goods such as securities are completed.

(economics, trade) The difference between the monetary value of exports and imports in an economy over a certain period of time.

(anatomy) The part of the respiratory tract consisting of trachea, bronchi, bronchioles and alveoli.

(anatomy) The part of the respiratory tract consisting of the nose, oral cavity, pharynx and larynx.

(programming) A hierarchical trace of the function calls made by a program, used in debugging.

(finance) The illegal buying or selling of securities of a publicly held company by a person who has privileged access to information concerning the company's financial condition or plans.

A regular sequence of wave pulses