Acantha

//əˈkæn.θə// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A prickle.
  2. 2
    any sharply pointed projection wordnet
  3. 3
    A spine or prickly fin.
  4. 4
    A spinous process of a vertebra.

    "Moreover, all the outgrowths which I have said constitute the acantha are not of equal size in all the vertebrae, and Nature has done this with wonderful forethought."

Synonyms

All synonyms
spinespurspur

Example

More examples

"Moreover, all the outgrowths which I have said constitute the acantha are not of equal size in all the vertebrae, and Nature has done this with wonderful forethought."

Etymology

From Ancient Greek ἄκανθα (ákantha, “thorn”), from ἀκή (akḗ, “thorn”) + ἄνθος (ánthos, “flower”).

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.