Good evening and welcome to Word of the Day! A journey through the English vocabulary and the words that piqued my interest, in WotD we'll be learning a new word for each working day of the week, except holidays, unless there's a holiday special...

Today's word is:

volatile

|ˈvälətl|

adjective

1. (of a substance) Easily evaporated at normal temperatures.

2. Liable to change rapidly and unpredictably, esp. for the worse: The political situation was becoming more volatile.

  • (of a person) Liable to display rapid changes of emotion.
  • (of a computer's memory) Retaining data only as long as there is a power supply connected.

noun (usu. volatiles)

  • A volatile substance.

ORIGIN: Middle English (in the sense 'creature that flies,' also, as a collective, 'birds'): from Old French volatil or Latin volatilis, from volare 'to fly.'