Definition of tetra- in English:

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tetra-

(also tetr- before a vowel)

combiningForm

1Four; having four: tetramerous tetragram tetrode
2 Chemistry (In names of compounds) containing four atoms or groups of a specified kind: tetracycline

Origin

From Greek, from tettares 'four'.

For editors and proofreaders

Syllabification: tetra-

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