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hydrospire

noun
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hy·​dro·​spire | \ "+ˌ- \

Definition of hydrospire

: a flattened calcareous pouch or tube on either side of the middle line of the inner surface of the ambulacra of a blastoid, located within the cavity of the calyx, opening on the exterior by a small aperture, and presumed to form part of the respiratory system

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Other Words from hydrospire

hydrospiric \ ¦⸗⸗¦spīrik \ adjective

History and Etymology for hydrospire

hydr- + spire (coil)

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Cite this Entry

“Hydrospire.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/hydrospire. Accessed 8 December 2019.

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