Meanings
- 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).
Near-synonym: T
1 more example
a 2-terawatt increase
Synonyms & antonyms
prefixIn 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).
prefixtebi- (2⁴⁰ = 1024⁴).
Origin
- Ancient Greekτέτταρες“four”
- Ancient Greekτέρας“monster”
- Englishtera-
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-.
More words from Ancient Greek
Full word history & related roots →Translations
Bulgarian тера-
- тера- (tera-)SI prefix
Chinese Cantonese 太-
- 太- (taai³)SI prefix
Chinese Mandarin 太-, 太拉-
- 太- (tài-)SI prefix
- 太拉- (tàilā-)SI prefix
- 兆- (zhào)SI prefix
Czech tera-
- tera-SI prefix
Dutch tera-
- tera-SI prefix
Finnish tera-
- tera-SI prefix
French téra-
- téra-SI prefix
German tera-
- tera-SI prefix
Greek τερα-
- τερα- (tera-)SI prefix
Hungarian tera-
- tera-SI prefix
Indonesian tera-
- tera-SI prefix
Japanese テラ-
- テラ- (tera-)SI prefix
Korean 테라-
- 테라- (tera-)SI prefix
Malay tera-
- tera-SI prefix
Polish tera-
- tera-SI prefix
Portuguese tera-
- tera-SI prefix
Russian тера-
- тера- (tera-)SI prefix
Spanish tera-
- tera-SI prefix
Thai เทระ-
- เทระ- (tee-rá)SI prefix
Vietnamese tê-ra
- tê-raSI prefix
Cite this entry
tera-. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/tera-
“tera-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/tera-. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “tera-,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/tera-.
Source: tera- on Wiktionary, CC BY-SA 4.0.