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underfill

noun
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plural -s

Definition of underfill

1 : a rolled or forged member (as of steel) that is imperfect because of insufficient material
2 : an incompletely filled can or container

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History and Etymology for underfill

under entry 3 + fill

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“Underfill.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underfill. Accessed 3 Mar. 2021.

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