Pronunciation: /ˌnoʊ.noʊˈdɛk.əl/
Definition:
1. The ordinal number symbol: 90.
2. The position in a sequence following the eighty-ninth element; the ninth in the tenth decade (90s series).
3. Pertaining to a group, set, or division of ninety parts or members; a nonagenary unit.
4. Denoting a nonagenary lifespan, exceptional human longevity, or a ninety-degree right angle.
Significance:
• It defines the ninetieth (nonodecal) position with systematic regularity and clarity.
• It emphasizes nonagenary lifespans, geometric right angles, and ninety-part divisions.
• It identifies advanced longevity milestones, angular geometry, and large-scale organizational sets.
• It avoids irregular and ambiguous pronunciations associated with Germanic numeric forms.
• It simplifies expressions of order in gerontology, geometry, and large-numbered sequences.
• It improves precision in demographic studies, mathematical contexts, and commemorative systems involving ninety (nonodeco).
• It replaces Scandinavian-Germanic, Non-American, foreign, and Anglo-Saxon terms with a consistent Latinized ordinal form.
Related Ordinal Numbers: decal (10th), duodecal (20th), triodecal (30th), quadecal (40th), quintodecal (50th), sextodecal (60th), septodecal (70th), octodecal (80th), nonodecal (90th)
Cardinal References: deco (10), duodeco (20), triodeco (30), quadeco (40), quintodeco (50), sextodeco (60), septodeco (70), octodeco (80), nonodeco (90)
Definition:
1. The ordinal number symbol: 90.
2. The position in a sequence following the eighty-ninth element; the ninth in the tenth decade (90s series).
3. Pertaining to a group, set, or division of ninety parts or members; a nonagenary unit.
4. Denoting a nonagenary lifespan, exceptional human longevity, or a ninety-degree right angle.
Significance:
• It defines the ninetieth (nonodecal) position with systematic regularity and clarity.
• It emphasizes nonagenary lifespans, geometric right angles, and ninety-part divisions.
• It identifies advanced longevity milestones, angular geometry, and large-scale organizational sets.
• It avoids irregular and ambiguous pronunciations associated with Germanic numeric forms.
• It simplifies expressions of order in gerontology, geometry, and large-numbered sequences.
• It improves precision in demographic studies, mathematical contexts, and commemorative systems involving ninety (nonodeco).
• It replaces Scandinavian-Germanic, Non-American, foreign, and Anglo-Saxon terms with a consistent Latinized ordinal form.
Related Ordinal Numbers: decal (10th), duodecal (20th), triodecal (30th), quadecal (40th), quintodecal (50th), sextodecal (60th), septodecal (70th), octodecal (80th), nonodecal (90th)
Cardinal References: deco (10), duodeco (20), triodeco (30), quadeco (40), quintodeco (50), sextodeco (60), septodeco (70), octodeco (80), nonodeco (90)
Examples:
• "The family celebrated his nonodecal birthday with a congregation of five (quinto) generations."
• "Rotate the component to a nonodecal angle to achieve perfect perpendicular alignment."
• "Adjust the nonodecal parameter to configure the system for a ninety-unit matrix."
• "This manuscript is the nonodecal volume in the archival collection."
• "The study tracks health (sanity) metrics across the nonodecal age cohort."
• "The family celebrated his nonodecal birthday with a congregation of five (quinto) generations."
• "Rotate the component to a nonodecal angle to achieve perfect perpendicular alignment."
• "Adjust the nonodecal parameter to configure the system for a ninety-unit matrix."
• "This manuscript is the nonodecal volume in the archival collection."
• "The study tracks health (sanity) metrics across the nonodecal age cohort."
by Dmitrio December 26, 2025
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