Word.ws English Dictionary

deltidium

UK/dɛlˈtɪdɪəm/

deltidium noun: the triangular space under the beak of many brachiopod shells.

deltidium: the triangular space under the beak of many brachiopod shells
Image: A. H. Cooke / Arthur Shipley / Frederick R. C. Reed, Public domain, via Wikimedia Commons

Noun

deltidium (plural deltidiums or deltidia)

  1. (archaic) The triangular space under the beak of many brachiopod shells.

Forms of deltidium

pluraldeltidiums
pluraldeltidia

Origin of deltidium

Borrowed from New Latin deltidium. By surface analysis, delta + -idium.

Questions about deltidium

What does deltidium mean?
Deltidium means the triangular space under the beak of many brachiopod shells.
What part of speech is deltidium?
Deltidium is a noun.
How do you pronounce deltidium?
Deltidium is pronounced /dɛlˈtɪdɪəm/ (UK).
What is the plural of deltidium?
The plural of deltidium is deltidiums.

Words near deltidium in the dictionary

  1. Deltics
  2. deltidia
  3. deltidial
  4. deltidiodont
  5. deltidiodonts
  6. deltidium
  7. deltidiums
  8. deltiological
  9. deltiologist
  10. deltiologists
  11. deltiology

Source and license

Adapted from Wiktionary: deltidium (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “deltidium.” Word.ws, https://word.ws/deltidium. Based on Wiktionary, CC BY-SA 4.0.