decennial

[dih-sen-ee-uhl]

adjective

1. of or for ten years.

2. occurring every ten years.

noun

1. a decennial anniversary.

2. its celebration.

decennial

/ dɪˈsɛnɪəl /

adjective

1. lasting for ten years

2. occurring every ten years

noun

1. a tenth anniversary or its celebration

Other Word Forms

• decennially adverb

Word History and Origins

Origin of decennial¹

1650–60; < Latin decenni ( um ) a period of ten years ( decenn ( is ) decennary + -ium -ium ) + -al ¹

Example Sentences

When will it issue its maps after the decennial census?

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Since the latest redistricting, in 2021 — triggered as usual by the constitutionally mandated decennial census — the map crafted by the commission has survived legal and political challenges, and the current districts are set to be in place through the next round of redistricting in 2031.

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Some states have taken serious steps to do that by enacting laws that require commissions to redraw the lines after the decennial census, or by using computer models.

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After the decennial census, states redraw district lines for congressional and legislative districts based on population shifts, protections for minority voters required by the federal Voting Rights Act and other factors.

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Redrawing of congressional districts typically occurs after the decennial census to reflect population shifts across the nation.

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