different between pleistocene vs quaternary
pleistocene
Italian
Noun
pleistocene m (plural pleistoceni)
- (geology) Pleistocene
Related terms
- pleistocenico
pleistocene From the web:
- what does pleistocene mean
- what is pleistocene period
- what is pleistocene epoch
- what caused pleistocene glaciation
- what is pleistocene glaciation
- what is pleistocene and holocene
- what is pleistocene rewilding
- what is pleistocene park
quaternary
English
Etymology
From the Latin quatern?rius (“containing or consisting of four”), from quatern? (“four each”, “four at a time”) + -?rius (whence the English suffix -ary); compare the French quaternaire.
Pronunciation
- (UK) IPA(key): /kw??t??n??i/; (rare) IPA(key): /?kw??t?n(?)?i/
- (US) IPA(key): /?kw??t??n???i/
Adjective
quaternary (not comparable)
- Of fourth rank or order
- the quaternary stress in a pronounced word
- Of a mathematical expression containing e.g. x4
- Relating to or in number base four
- (organic chemistry) quaternary ammonium
- (inorganic chemistry) composed of four elements
Usage notes
The fourth ordinal from Latin that might etymologically follow tertiary is quartary, but quaternary (from the distributive number instead) is more usual in English.
Related terms
- quaternion
Derived terms
- bisquaternary
- quaternary ammonium
Translations
See also
- unary, unitary (1)
- primary (1st)
- binary (2)
- secondary (2nd)
- ternary or trinary (3)
- tertiary (3rd)
- quaternary (4)
- quartary (4th)
- tetranary (4)
- quinary (5)
- senary (6)
- septenary (7)
- octonary (8)
- novenary (9)
- nonary (9th)
- denary (10)
- duodenary (12)
- vicenary (20)
- tricenary (30)
- sexagenary (60)
- centenary (100)
Noun
quaternary (plural quaternaries)
- (chemistry) A quaternary compound.
- (geology) The Quaternary period or the system of deposits laid down during it.
quaternary From the web:
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