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Absorption in Irish (Ionsú): Meaning, Pronunciation, Usage

The Irish for absorption is ionsú, a masculine noun. Ag ionsú is absorbing, from the verb ionsúigh.
Updated October 2026Report a mistake

How to say “absorption” in Irish

Irish:
ionsú
English:
absorption
Word type:
noun (verbal noun)
Verbal noun of:
ionsúigh, to absorb (ag ionsú, absorbing)
Gender:
masculine
Pronunciation:
“IN-soo”  /ˈɪnˠsˠuː/
Various forms
Genitive singular:
ionsú, an ionsú (e.g. ráta an ionsú, rate of absorption)

What does “ionsú” mean?

absorption
The process of soaking up or taking in a liquid, gas, heat or energy; it is the verbal noun of the verb ionsúigh.Also: absorbing, soaking up, uptake.

“Ionsú” as a verbal noun

After ag, ionsú means absorbing: it is the verbal noun of the verb ionsúigh (to absorb). A noun that follows it goes into the genitive.

agat
+
ionsúverbal noun
=
ag ionsúabsorbing

“Ionsú” with the article

Here is ionsú after the article (an t-alt).

an t-ionsú
the absorption
Masculine nouns take t before a vowel after an

“Ionsú” in a sentence: Irish examples

Common Irish sentences using ionsú, the Irish word for absorption.

Tarlaíonn ionsú uisce trí fhréamhacha an phlanda.
Water absorption happens through the plant's roots.
Tá an t-ionsú solais an-ard san ábhar seo.
Light absorption is very high in this material.
Mhínigh an múinteoir próiseas an ionsú dúinn.
The teacher explained the process of absorption to us.
Bíonn ionsú bia sa stéig bheag den chuid is mó.
Food absorption mostly takes place in the small intestine.
Rinneamar turgnamh ar ionsú teasa inniu.
We did an experiment on heat absorption today.
Cuireann an galar isteach ar ionsú vitimíní.
The disease interferes with the absorption of vitamins.
Tá ráta an ionsú níos moille sa gheimhreadh.
The rate of absorption is slower in winter.

Other nouns in Irish

More everyday Irish nouns to learn next.

Absorption in Irish: frequently asked questions

What is the Irish for absorption?

The Irish for absorption is ionsú (pronounced “IN-soo”). It’s a masculine noun.

How do you pronounce ionsú in Irish?

Ionsú is said like “IN-soo” (IPA /ˈɪnˠsˠuː/).

Does ionsú have a plural?

No plural form is given for ionsú in the standard. Many abstract and mass nouns in Irish have no plural.

Why does ionsú sometimes have a t or h in front of it?

Irish nouns beginning with a vowel take a prefix after certain words: an t-ionsú (the absorption), a hionsú (her absorption), a n-ionsú (their absorption).

How is 'ionsú' different from 'súrac'?

'Ionsú' is the technical word for absorption in science, while 'súrac' is the everyday word for sucking or suction.

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