tera-

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-.

• (US) IPA^(key): /ˈtɛ.ɹə/

• Audio (Southern England):

  (file)

tera-

2. 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

4. (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

• 'eart, Ater, Reta, aret, arte-, rate, tare, tear

From Ancient Greek τέρας (téras, “monster”).

tera-

1. tera-

• “tera-”, in Kartotéka Novočeského lexikálního archivu (in Czech)
• tera- in Slovník afixů užívaných v češtině, 2017

From Ancient Greek τέρας (téras, “monster”).

• Audio:

  (file)

tera-

1. tera-

Internationalism (see English tera-), ultimately from Ancient Greek τέρας (téras).

• IPA^(key): /ˈterɑ-/, [ˈt̪e̞rɑ̝-]

tera-

1. tera-

• “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

From Ancient Greek τέρας (téras, “monster”).

tera-

1. tera-

• “tera-” in Duden online
• “tera-” in Digitales Wörterbuch der deutschen Sprache

From Ancient Greek τέρας (téras, “monster”).

tera-

1. tera- (SI prefix indicating 10¹², a trillion)
2. tebi- (IEC prefix indicating 2⁴⁰)

• “tera-”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2025
• “tera-”, in Dicionário infopédia da Lingua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2025

From Ancient Greek τέρας (téras, “monster”).

tera-

1. tera- (SI prefix multiplying the unit by 10¹²)
2. (computing) tebi- (IEC prefix multiplying the unit by 2⁴⁰)

• “tera-”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 10 December 2024