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Becquerel in Irish (Beicireil): Meaning, Pronunciation, Usage

The Irish for becquerel is beicireil, a feminine noun (plural beicireilí).
Updated October 2026Report a mistake

How to say “becquerel” in Irish

Irish:
beicireil
English:
becquerel
Word type:
noun
Gender:
feminine, second declension
Pronunciation:
“BEK-ir-el”  /ˈbʲɛcəɾʲɛlʲ/
Various forms
Plural:
beicireilí (becquerels)
Genitive singular:
beicireile, na beicireile (e.g. sainmhíniú na beicireile, definition of the becquerel)
Genitive plural:
beicireilí, na mbeicireilí (e.g. líon na mbeicireilí, the number of the becquerels)

What does “beicireil” mean?

becquerel
The becquerel is the SI unit of radioactivity, equal to one atomic decay per second.Also: unit of radioactivity, bq.

“Beicireil” with the article

The plural of becquerel in Irish is beicireilí. Here is beicireil after the article (an t-alt), in the singular and the plural.

an bheicireil
the becquerel
Lenition: b becomes bh after an (feminine noun)
na beicireilí
the becquerels
Plural: no change after na

“Beicireil” in a sentence: Irish examples

Common Irish sentences using beicireil, the Irish word for becquerel.

Is aonad radaighníomhaíochta í an bheicireil.
The becquerel is a unit of radioactivity.
Tomhaistear radaighníomhaíocht i mbeicireilí.
Radioactivity is measured in becquerels.
Is ionann beicireil amháin agus meath amháin sa soicind.
One becquerel equals one decay per second.
Bhí céad beicireil sa chileagram feola.
There were a hundred becquerels in the kilogram of meat.
Ainmníodh an bheicireil as eolaí Francach.
The becquerel was named after a French scientist.
Cén tsiombail atá ag an mbeicireil?
What is the symbol for the becquerel?
Míníonn an múinteoir brí na beicireile don rang.
The teacher explains the meaning of the becquerel to the class.

Other nouns in Irish

More everyday Irish nouns to learn next.

Becquerel in Irish: frequently asked questions

What is the Irish for becquerel?

The Irish for becquerel is beicireil (pronounced “BEK-ir-el”). It’s a feminine noun and the plural is beicireilí.

How do you pronounce beicireil in Irish?

Beicireil is said like “BEK-ir-el” (IPA /ˈbʲɛcəɾʲɛlʲ/).

What is the plural of becquerel in Irish?

The plural of beicireil is beicireilí; with the article, na beicireilí means “the becquerels”. The genitive plural is beicireilí, as in líon na mbeicireilí (the number of the becquerels).

Why does beicireil change to bheicireil or mbeicireil?

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

Is 'beicireil' related to a person's name?

Yes, 'beicireil' is the Irish form of becquerel, named after the physicist Henri Becquerel, like 'sievert' and other SI units.

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