Definition of ultra- in English:

ultra-

Syllabification: ultra-

prefix

1Beyond; on the other side of: ultramontane Often contrasted with cis-.
2Extreme; to an extreme degree: ultramicroscopic ultraradical

Origin

from Latin ultra 'beyond'.

Definition of ultra- in:

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Word of the day bimble
Pronunciation: ˈbɪmb(ə)l
verb
walk or travel at a leisurely pace