Plural of ostium
irregular plural
The plural of ostium is ostia.
Forms of ostium
| Singular | ostium |
|---|---|
| Plural | ostia |
| Countable | countable |
Ostia in a sentence
- In the sycon, the sponge type of intermediate complexity, water enters the ostia through small radially arranged incurrent canals formed by folding of the body wall.2012, M. A. Brunt, J. E. Davies, The Cayman Islands: Natural History and Biogeography, page 131. From the entry incurrent
Meaning of ostium
- noun A small opening or orifice, as in a body organ or passage.
- noun Any of the small openings or pores in a sponge.
- noun The mouth of a river.
Nouns ending in -um: plural -a
- minimum (minima)
- medium (media)
- maximum (maxima)
- spectrum (spectra)
- curriculum (curricula)
- referendum (referenda)
- millennium (millennia)
- consortium (consortia)
- podium (podia)
- aquarium (aquaria)
- optimum (optima)
- gymnasium (gymnasia)
Questions about the plural of ostium
- What is the plural of ostium?
- The plural of ostium is ostia.
- Is ostium countable?
- Ostium is a countable noun.
Source and license
Adapted from Wiktionary: ostium (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.
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Cite this page: “Plural of ostium.” Word.ws, https://word.ws/plural/ostium. Based on Wiktionary, CC BY-SA 4.0.