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Chemical in Irish (Ceimiceán): Meaning, Pronunciation, Usage

The Irish for chemical is ceimiceán, a masculine noun (plural ceimiceáin).
Updated October 2026Report a mistake

How to say “chemical” in Irish

Irish:
ceimiceán
English:
chemical
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“KEM-ik-awn”  /ˈcɛmʲɪcaːnˠ/
Various forms
Plural:
ceimiceáin (chemicals)
Genitive singular:
ceimiceáin, an cheimiceáin (e.g. ainm an cheimiceáin, the name of the chemical)
Genitive plural:
ceimiceán, na gceimiceán (e.g. úsáid na gceimiceán, the use of the chemicals)

What does “ceimiceán” mean?

chemical
A substance produced by or used in chemistry, especially one made in industry or a laboratory.Also: chemical substance, chemical compound.

“Ceimiceán” with the article

The plural of chemical in Irish is ceimiceáin. Here is ceimiceán after the article (an t-alt), in the singular and the plural.

an ceimiceán
the chemical
No change after an
na ceimiceáin
the chemicals
Plural: no change after na

“Ceimiceán” in a sentence: Irish examples

Common Irish sentences using ceimiceán, the Irish word for chemical.

Is ceimiceán contúirteach é sin.
That is a dangerous chemical.
Cuir an ceimiceán sa bhuidéal sin.
Put the chemical in that bottle.
Ná lig do na páistí na ceimiceáin a láimhseáil.
Don't let the children handle the chemicals.
Bhí boladh láidir an cheimiceáin sa seomra.
The strong smell of the chemical was in the room.
Úsáideann feirmeoirí a lán ceimiceán ar na páirceanna.
Farmers use a lot of chemicals on the fields.
Tá ceimiceáin san uisce san abhainn.
There are chemicals in the water in the river.
Coinnítear na ceimiceáin i gcófra faoi ghlas.
The chemicals are kept in a locked cupboard.

Other nouns in Irish

More everyday Irish nouns to learn next.

Chemical in Irish: frequently asked questions

What is the Irish for chemical?

The Irish for chemical is ceimiceán (pronounced “KEM-ik-awn”). It’s a masculine noun and the plural is ceimiceáin.

How do you pronounce ceimiceán in Irish?

Ceimiceán is said like “KEM-ik-awn” (IPA /ˈcɛmʲɪcaːnˠ/).

What is the plural of chemical in Irish?

The plural of ceimiceán is ceimiceáin; with the article, na ceimiceáin means “the chemicals”. The genitive plural is ceimiceán, as in úsáid na gceimiceán (the use of the chemicals).

Why does ceimiceán change to cheimiceán or gceimiceán?

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

What is the difference between ceimiceán and ceimic?

Ceimiceán is a chemical substance, while ceimic is the science of chemistry. A chemist is ceimiceoir.

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