omega-
prefixUK /ˈəʊmɪɡə/
US /oʊˈmeɪɡə/
A prefix meaning the last or final one in a series.
In physics, the omega particle is the last one in a certain group.
OTHER MEANINGS
2. The last letter of the Greek alphabet.
Omega is the final letter of the Greek alphabet.
3. A prefix used in chemistry to show the end position of a chain.
The omega-3 fatty acids are important for health.
4. A symbol for the end or final point of something.
The phrase 'alpha and omega' means the beginning and the end.