: a genus (the type of the family Umbellulidae) of deep-sea alcyonarians consisting of a cluster of large flowerlike polyps at the summit of a long slender stem that stands upright in the mud and is supported by a bulbous base

Word History


New Latin, diminutive of umbella umbel

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Dictionary Entries Near Umbellula

Cite this Entry

“Umbellula.” Dictionary, Merriam-Webster, Accessed 21 Sep. 2023.

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