day trade

Short definition from Wiktionary

Noun

1. 1
   A transaction in which units of stock or other investment instruments are purchased and then sold within a single market day.
2. 2
   Alternative form of day trade.

Verb

1. 1
   To engage, as a deliberate investment strategy, in the very short-term trading of stocks or other securities, by selling any given security within the same market day during which it was purchased.
2. 2
   Alternative form of day trade.