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Biohazard in Irish (Bithghuais): Meaning, Pronunciation, Usage

The Irish for biohazard is bithghuais, a feminine noun (plural bithghuaiseacha).
Updated October 2026Report a mistake

How to say “biohazard” in Irish

Irish:
bithghuais
English:
biohazard
Word type:
noun
Gender:
feminine, second declension
Pronunciation:
“BIH-ghoo-ish”  /ˈbʲɪˌɣuəʃ/
Various forms
Plural:
bithghuaiseacha (biohazards)
Genitive singular:
bithghuaise, na bithghuaise (e.g. comhartha bithghuaise, biohazard sign)
Genitive plural:
bithghuaiseacha, na mbithghuaiseacha (e.g. rialú na mbithghuaiseacha, the control of biohazards)

What does “bithghuais” mean?

biohazard
A biological substance or agent, such as a virus or medical waste, that is a danger to the health of people or animals.Also: biological hazard, biological danger.

“Bithghuais” with the article

The plural of biohazard in Irish is bithghuaiseacha. Here is bithghuais after the article (an t-alt), in the singular and the plural.

an bhithghuais
the biohazard
Lenition: b becomes bh after an (feminine noun)
na bithghuaiseacha
the biohazards
Plural: no change after na

“Bithghuais” in a sentence: Irish examples

Common Irish sentences using bithghuais, the Irish word for biohazard.

Is bithghuais í an dramhaíl seo ón ospidéal.
This waste from the hospital is a biohazard.
Tá comhartha bithghuaise ar dhoras na saotharlainne.
There is a biohazard sign on the laboratory door.
Caithfear an bhithghuais a láimhseáil go cúramach.
The biohazard must be handled carefully.
Tá go leor bithghuaiseacha i saotharlanna taighde.
There are many biohazards in research laboratories.
Cuir na snáthaidí sa bhosca bithghuaise, le do thoil.
Put the needles in the biohazard box, please.
Fuair na hoibrithe oiliúint ar bhithghuaiseacha.
The workers got training on biohazards.
Ní mór culaith chosanta a chaitheamh i gcás bithghuaise.
Protective clothing must be worn in the case of a biohazard.

Other nouns in Irish

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Biohazard in Irish: frequently asked questions

What is the Irish for biohazard?

The Irish for biohazard is bithghuais (pronounced “BIH-ghoo-ish”). It’s a feminine noun and the plural is bithghuaiseacha.

How do you pronounce bithghuais in Irish?

Bithghuais is said like “BIH-ghoo-ish” (IPA /ˈbʲɪˌɣuəʃ/).

What is the plural of biohazard in Irish?

The plural of bithghuais is bithghuaiseacha; with the article, na bithghuaiseacha means “the biohazards”. The genitive plural is bithghuaiseacha, as in rialú na mbithghuaiseacha (the control of biohazards).

Why does bithghuais change to bhithghuais or mbithghuais?

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

How is 'bithghuais' formed?

It combines the prefix 'bith-' (bio-, life) with 'guais' (danger, hazard), with lenition of the g, giving 'bithghuais'.

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