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Toxin in Irish (Tocsain): Meaning, Pronunciation, Usage

The Irish for toxin is tocsain, a feminine noun (plural tocsainí).
Updated October 2026Report a mistake

How to say “toxin” in Irish

Irish:
tocsain
English:
toxin
Word type:
noun
Gender:
feminine
Pronunciation:
“TUK-sin”  /ˈt̪ˠɔkˠsˠənʲ/
Various forms
Plural:
tocsainí (toxins)
Genitive singular:
tocsaine, na tocsaine (e.g. éifeacht na tocsaine, the effect of the toxin)
Genitive plural:
tocsainí, na dtocsainí (e.g. leibhéal na dtocsainí, the level of the toxins)

What does “tocsain” mean?

toxin
A poisonous substance produced by a living thing, such as a bacterium, plant or animal.Also: poison, toxic substance.

“Tocsain” with the article

The plural of toxin in Irish is tocsainí. Here is tocsain after the article (an t-alt), in the singular and the plural.

an tocsain
the toxin
No change: d and t are not lenited after an
na tocsainí
the toxins
Plural: no change after na

“Tocsain” in a sentence: Irish examples

Common Irish sentences using tocsain, the Irish word for toxin.

Is tocsain chontúirteach í seo.
This is a dangerous toxin.
Táirgeann na baictéir tocsain sa bhia.
The bacteria produce a toxin in the food.
Scaip an tocsain tríd an gcorp go tapa.
The toxin spread quickly through the body.
Bhí tionchar na tocsaine le feiceáil ar an othar.
The effect of the toxin was visible in the patient.
Glanann na duáin tocsainí as an bhfuil.
The kidneys clear toxins from the blood.
Tá tocsainí i gcuid de na beacáin seo.
Some of these mushrooms contain toxins.
Fuarthas rian tocsaine sa sampla uisce.
A trace of toxin was found in the water sample.

Other nouns in Irish

More everyday Irish nouns to learn next.

Toxin in Irish: frequently asked questions

What is the Irish for toxin?

The Irish for toxin is tocsain (pronounced “TUK-sin”). It’s a feminine noun and the plural is tocsainí.

How do you pronounce tocsain in Irish?

Tocsain is said like “TUK-sin” (IPA /ˈt̪ˠɔkˠsˠənʲ/).

What is the plural of toxin in Irish?

The plural of tocsain is tocsainí; with the article, na tocsainí means “the toxins”. The genitive plural is tocsainí, as in leibhéal na dtocsainí (the level of the toxins).

Why does tocsain change to thocsain or dtocsain?

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

What is the difference between 'tocsain' and 'nimh'?

'Nimh' is the general word for poison or venom, while 'tocsain' is the technical term for a toxin produced by a living organism.

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