Definitions

1. noun

The last or latest in a series, especially of a year or a period of time.

“She is the ult in her class, being the top student of the year.”

2. noun

A suffix used in some chemical names to indicate that the compound is the highest possible member of a homologous series.

“The ult compounds are highly reactive and unstable.”

3. adjective

Latest or last in a series or a sequence.

“The ult model of the car is the most advanced one available in the market.”

4. suffix

Used in some words to indicate the highest or latest.

“Ult- in ultimatum means ‘last’ or ‘utmost’.”