sine qua non

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Related to sine qua nons: Conditio sine qua non

si·ne qua non

 (sĭn′ĭ kwä nŏn′, nōn′, sī′nĭ, kwā)
n.
An essential element or condition: "The perfect cake is the sine qua non of the carefully planned modern wedding" (J.M. Hilary).

[Late Latin sine quā (causā) nōn, without which (cause) not : Latin sine, without + Latin quā : feminine ablative of quī, which + Latin nōn, not.]

sine qua non

(ˈsaɪnɪ kweɪ ˈnɒn)
n
(Law) an essential condition or requirement
[literally: without which not]

si•ne qua non

(ˈsɪn eɪ kwɑ ˈnoʊn, ˈnɒn, kweɪ)
n.
an indispensable or essential condition, element, or factor.
[1585–95; < Late Latin sine quā(causā) nōn without which (thing) not]

sine qua non

A Latin phrase meaning without which nothing, used to mean something that is absolutely essential.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sine qua non - a prerequisite
prerequisite, requirement - something that is required in advance; "Latin was a prerequisite for admission"

sine qua non

noun
Translations

sine qua non

[ˈsaɪnɪkweɪˈnɒn] Nsine qua non m

sine qua non

References in classic literature ?
if the classical phrase might be pardoned) a sine qua non.
Noel Vanstone (after submitting himself to the sine qua non, and destroying the letter) waited anxiously for results; while Mrs.