non-annularity
|non-an-nu-la-ri-ty|
🇺🇸
/nɑnˌæn.jəˈlær.ɪ.ti/
🇬🇧
/nɒnˌæn.jʊˈlær.ɪ.ti/
(annularity)
state of being ring-shaped
Etymology
'non-annularity' originates from English, specifically formed by the negative prefix 'non-' + the noun 'annularity', where 'non-' meant 'not' and 'annulus' (from Latin) meant 'ring'.
'annularity' derives from Latin 'annulus' meaning 'ring', which gave the adjective 'annular' in Late Latin/Medieval Latin ('annularis'), entered Middle/Modern English as 'annular', and then the abstract noun 'annularity' was formed in Modern English; 'non-annularity' is a more recent formation by prefixing 'non-' to that noun.
Initially the elements referred specifically to a 'ring' (Latin 'annulus'); over time 'annular' and then 'annularity' came to denote ring-shaped form or the condition of being ring-shaped, and 'non-annularity' developed to express the opposite: 'not ring-shaped'.
Meanings by Part of Speech
Noun 1
the state or quality of not being annular; absence of a ring-shaped or circular band structure.
The geologist noted the non-annularity of the deposit, concluding it had not formed in concentric rings.
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Noun 2
(Mathematics/Topology) The property of a region or surface not being topologically equivalent to an annulus (i.e., not homeomorphic to a ring-shaped region).
The proof established the non-annularity of the domain, showing it cannot be deformed into an annulus without cutting.
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Last updated: 2025/12/18 22:56