: the unopened dried flower heads of Levant wormseed or of another plant of the genus Artemisia (especially A. maritima) used as an anthelmintic
also : one of these plants

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“Santonica.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/santonica. Accessed 10 Mar. 2025.

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