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isidioid

[ ahy-sid-ee-oid ]
/ aɪˈsɪd iˌɔɪd /
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adjective
of, relating to, or resembling an isidium.
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Which of the following nouns has an irregular plural form?

Origin of isidioid

First recorded in 1920–25; isidi(um) + -oid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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