Pronunciation: /ˌtraɪ.oʊˈdɛk.əl/
Definition:
1. The ordinal number symbol: 30.
2. The position in a sequence following the twenty-ninth element; the third (trial) in the fourth (quadal) decade (30s series).
3. Pertaining to a group, set, or division of thirty (triodeco) parts or members; a month's standard duration.
4. Denoting a complete unit of thirty (triodeco) days, or a standard temporal division in calendars and scheduling.
Significance:
• It defines the thirtieth (triodecal) position with systematic regularity and clarity.
• It emphasizes monthly cycles, tricenary groupings, and thirty-part divisions.
• It identifies standard month lengths, tricennial periods, and systematic thirty-unit sets.
• It avoids irregular and ambiguous pronunciations associated with Germanic numeric forms.
• It simplifies expressions of order in calendrical, temporal, and organizational contexts.
• It improves precision in scheduling, historical periods, and quantitative systems involving the number thirty (triodeco).
• 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: 30.
2. The position in a sequence following the twenty-ninth element; the third (trial) in the fourth (quadal) decade (30s series).
3. Pertaining to a group, set, or division of thirty (triodeco) parts or members; a month's standard duration.
4. Denoting a complete unit of thirty (triodeco) days, or a standard temporal division in calendars and scheduling.
Significance:
• It defines the thirtieth (triodecal) position with systematic regularity and clarity.
• It emphasizes monthly cycles, tricenary groupings, and thirty-part divisions.
• It identifies standard month lengths, tricennial periods, and systematic thirty-unit sets.
• It avoids irregular and ambiguous pronunciations associated with Germanic numeric forms.
• It simplifies expressions of order in calendrical, temporal, and organizational contexts.
• It improves precision in scheduling, historical periods, and quantitative systems involving the number thirty (triodeco).
• 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 payment is due on the triodecal day of each month."
• "The study observed participants over a triodecal period to assess longitudinal effects."
• "Adjust the triodecal parameter to align with the thirty-day billing cycle."
• "The assembly line completes a triodecal unit batch every hour."
• "This marks the organization's triodecal anniversary since its founding."
• "The payment is due on the triodecal day of each month."
• "The study observed participants over a triodecal period to assess longitudinal effects."
• "Adjust the triodecal parameter to align with the thirty-day billing cycle."
• "The assembly line completes a triodecal unit batch every hour."
• "This marks the organization's triodecal anniversary since its founding."
by Dmitrio December 13, 2025
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