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Differential in Irish (Difreálach): Meaning, Pronunciation, Usage

‘difreálach’ also means: differential gear

The Irish for differential is difreálach, a masculine noun (plural difreálaigh).
Updated October 2026Report a mistake

How to say “differential” in Irish

Irish:
difreálach
English:
differential, differential gear
Word type:
noun
Gender:
masculine
Pronunciation:
“DIF-raw-lukh”  /ˈdʲifʲɾʲaːləx/
Various forms
Plural:
difreálaigh (differentials)
Genitive singular:
difreálaigh, an difreálaigh (e.g. luach an difreálaigh, the value of the differential)
Genitive plural:
difreálach, na ndifreálach (e.g. cothromóidí difreálach, differential equations)

What does “difreálach” mean?

“Difreálach” has two alternative meanings. The most common comes first.

differential
In mathematics, a differential is an infinitely small change in a variable, as used in calculus.Also: differential in calculus, infinitesimal change.
1 other meaning: differential gear
2differential gear
In a vehicle, the differential is the set of gears that lets the wheels on an axle turn at different speeds.Also: differential, diff.

“Difreálach” with the article

The plural of differential in Irish is difreálaigh. Here is difreálach after the article (an t-alt), in the singular and the plural.

an difreálach
the differential
No change after an
na difreálaigh
the differentials
Plural: no change after na

“Difreálach” in a sentence: Irish examples

Common Irish sentences using difreálach, the Irish word for differential.

Ríomh an difreálach don fheidhm seo.
Calculate the differential for this function.
Is téarma matamaitice é difreálach.
A differential is a mathematical term.
Tá an difreálach briste sa charr.
The differential is broken in the car.
D'fhoghlaimíomar faoi dhifreálaigh sa rang inniu.
We learned about differentials in class today.
Scríobh sé luach an difreálaigh ar an gclár.
He wrote the value of the differential on the board.
Bhí ola ag sileadh ón difreálach.
Oil was leaking from the differential.
Tá dhá dhifreálach sa leoraí sin.
There are two differentials in that lorry.

Other nouns in Irish

More everyday Irish nouns to learn next.

Differential in Irish: frequently asked questions

What is the Irish for differential?

The Irish for differential is difreálach (pronounced “DIF-raw-lukh”). It’s a masculine noun and the plural is difreálaigh. Depending on context it can also mean differential gear.

How do you pronounce difreálach in Irish?

Difreálach is said like “DIF-raw-lukh” (IPA /ˈdʲifʲɾʲaːləx/).

What is the plural of differential in Irish?

The plural of difreálach is difreálaigh; with the article, na difreálaigh means “the differentials”. The genitive plural is difreálach, as in cothromóidí difreálach (differential equations).

Does difreálach have more than one meaning?

Yes. Difreálach can mean differential or differential gear, depending on context; the first is the most common.

Why does difreálach change to dhifreálach or ndifreálach?

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

Is 'difreálach' also an adjective?

Yes, 'difreálach' is also the adjective 'differential', as in 'calcalas difreálach' (differential calculus); as a noun it means a differential.

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