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Diatom in Irish (Diatóm): Meaning, Pronunciation, Usage

The Irish for diatom is diatóm, a masculine noun (plural diatóim).
Updated October 2026Report a mistake

How to say “diatom” in Irish

Irish:
diatóm
English:
diatom
Word type:
noun
Gender:
masculine
Pronunciation:
“DEE-uh-tohm”  /ˈdʲiət̪ˠoːmˠ/
Various forms
Plural:
diatóim (diatoms)
Genitive singular:
diatóim, an diatóim (e.g. balla cille an diatóim, the cell wall of the diatom)
Genitive plural:
diatóm, na ndiatóm (e.g. fás na ndiatóm, the growth of diatoms)

What does “diatóm” mean?

diatom
A tiny single-celled alga with a cell wall made of silica, found in water and soil.Also: alga, microscopic alga, plankton.

“Diatóm” with the article

The plural of diatom in Irish is diatóim. Here is diatóm after the article (an t-alt), in the singular and the plural.

an diatóm
the diatom
No change after an
na diatóim
the diatoms
Plural: no change after na

“Diatóm” in a sentence: Irish examples

Common Irish sentences using diatóm, the Irish word for diatom.

Is alga aoncheallach é diatóm.
A diatom is a single-celled alga.
Chonaiceamar an diatóm faoin micreascóp.
We saw the diatom under the microscope.
Tá diatóim le fáil i ngach cineál uisce.
Diatoms are found in every kind of water.
Tá cruth an diatóim an-álainn.
The shape of the diatom is very beautiful.
Rinne sí staidéar ar dhiatóim san ollscoil.
She studied diatoms at university.
Is cuid den phlanctón iad na diatóim.
Diatoms are part of the plankton.
Tá go leor diatóm sa loch seo.
There are lots of diatoms in this lake.

Other nouns in Irish

More everyday Irish nouns to learn next.

Diatom in Irish: frequently asked questions

What is the Irish for diatom?

The Irish for diatom is diatóm (pronounced “DEE-uh-tohm”). It’s a masculine noun and the plural is diatóim.

How do you pronounce diatóm in Irish?

Diatóm is said like “DEE-uh-tohm” (IPA /ˈdʲiət̪ˠoːmˠ/).

What is the plural of diatom in Irish?

The plural of diatóm is diatóim; with the article, na diatóim means “the diatoms”. The genitive plural is diatóm, as in fás na ndiatóm (the growth of diatoms).

Why does diatóm change to dhiatóm or ndiatóm?

Irish changes the start of some words after certain words. After mo (my) diatóm becomes mo dhiatóm (lenition), and after ár (our) or i (in) it becomes ár ndiatóm (eclipsis).

Is 'diatóm' a common word?

No, 'diatóm' is a technical term used in biology and science, mostly in textbooks and terminology lists.

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