Learn how to say Tuber correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word tuber:
1a much thickened underground part of a stem or rhizome, e.g. in the potato, serving as a food reserve and bearing buds from which new plants arise.
a tuberous root, e.g. of the dahlia.
2 Anatomy a rounded swelling or protuberant part:
[with Latin modifier]:
mid 17th century: from Latin, literally ‘hump, swelling’