tera-
التعريفات والمعاني
== English ==
=== Etymology ===
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-.
=== Pronunciation ===
(US) IPA(key): /ˈtɛ.ɹə/
=== Prefix ===
tera-
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).
Alternative form: T- (symbol)
Antonym: pico- (10⁻¹²)
Coordinate term: see at Wikipedia > bit and byte prefixes
Near-synonym: T
a 2-terawatt increase
(now deprecated, but still in common use) tebi- (2⁴⁰ = 1024⁴).
Alternative form: T- (symbol)
Synonym: Ti- (symbol)
Coordinate term: see at Wikipedia > bit and byte prefixes
a 2-terabyte hard drive
==== Derived terms ====
==== Translations ====
=== Anagrams ===
'eart, Ater, Reta, aret, arte-, rate, tare, tear
== Czech ==
=== Etymology ===
From Ancient Greek τέρας (téras, “monster”).
=== Prefix ===
tera-
tera-
==== Derived terms ====
=== Further reading ===
“tera-”, in Kartotéka Novočeského lexikálního archivu (in Czech)
tera- in Slovník afixů užívaných v češtině, 2017
== Dutch ==
=== Etymology ===
From Ancient Greek τέρας (téras, “monster”).
=== Pronunciation ===
=== Prefix ===
tera-
tera-
==== Derived terms ====
== Finnish ==
=== Etymology ===
Internationalism (see English tera-), ultimately from Ancient Greek τέρας (téras).
=== Pronunciation ===
IPA(key): /ˈterɑ-/, [ˈt̪e̞rɑ̝-]
=== Prefix ===
tera-
tera-
=== Further reading ===
“tera-”, in Kielitoimiston sanakirja [Dictionary of Contemporary Finnish][1] (in Finnish) (online dictionary, continuously updated), Kotimaisten kielten keskuksen verkkojulkaisuja 35, Helsinki: Kotimaisten kielten tutkimuskeskus (Institute for the Languages of Finland), 2004–, retrieved 3 July 2023
== German ==
=== Etymology ===
From Ancient Greek τέρας (téras, “monster”).
=== Prefix ===
tera-
tera-
==== Derived terms ====
=== Further reading ===
“tera-” in Duden online
“tera-” in Digitales Wörterbuch der deutschen Sprache
== Portuguese ==
=== Etymology ===
From Ancient Greek τέρας (téras, “monster”).
=== Prefix ===
tera-
tera- (SI prefix indicating 1012, a trillion)
tebi- (IEC prefix indicating 240)
==== Derived terms ====
=== Further reading ===
“tera-”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
“tera-”, in Dicionário infopédia da Lingua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2026
“tera-”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026
== Spanish ==
=== Etymology ===
From Ancient Greek τέρας (téras, “monster”).
=== Prefix ===
tera-
tera- (SI prefix multiplying the unit by 1012)
(computing) tebi- (IEC prefix multiplying the unit by 240)
==== Derived terms ====
=== Further reading ===
“tera-”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025