Tera-
//ˈtɛ.ɹə// prefix
prefix ·Rare ·Advanced level
Definitions
Prefix
- 1 In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10¹² (short scale trillion or long scale billion). morpheme
"Near-synonym: T"
- 2 tebi- (2⁴⁰ = 1024⁴). morpheme, proscribed
"a 2-terabyte hard drive"
Synonyms
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All antonymsEtymology
From Ancient Greek τέρας (téras, “monster”). Also from Ancient Greek τέτταρες (téttares, “four”), by analogy with tetra- for being the fourth power of 10³. Doublet of terato-.
Related phrases
More for "tera-"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.