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Acyl in Irish (Aicil): Meaning, Pronunciation, Usage

The Irish for acyl is aicil, a feminine noun (plural aicilí).
Updated October 2026Report a mistake

How to say “acyl” in Irish

Irish:
aicil
English:
acyl
Word type:
noun
Gender:
feminine
Pronunciation:
“AK-il”  /ˈakʲɪlʲ/
Various forms
Plural:
aicilí (acyls)
Genitive singular:
aicile, na haicile (e.g. foirmle na haicile, the formula of the acyl)
Genitive plural:
aicilí, na n-aicilí (e.g. airíonna na n-aicilí, the properties of the acyls)

What does “aicil” mean?

acyl
In chemistry, an acyl is a group of atoms formed when a hydroxyl group is removed from a carboxylic acid.Also: acyl group, acyl radical.

“Aicil” with the article

The plural of acyl in Irish is aicilí. Here is aicil after the article (an t-alt), in the singular and the plural.

an aicil
the acyl
No change: feminine nouns starting with a vowel keep their form after an
na haicilí
the acyls
Plural: na adds h before a vowel

“Aicil” in a sentence: Irish examples

Common Irish sentences using aicil, the Irish word for acyl.

Is grúpa ceimiceach í aicil.
An acyl is a chemical group.
Foirmítear an aicil ó aigéad carbocsaileach.
The acyl is formed from a carboxylic acid.
Tá aicilí éagsúla sa cheimic orgánach.
There are various acyls in organic chemistry.
Scríobh an múinteoir foirmle na haicile ar an gclár.
The teacher wrote the formula of the acyl on the board.
Tá ocsaigin i ngach aicil.
There is oxygen in every acyl.
Rinneamar staidéar ar aicilí sa tsaotharlann.
We studied acyls in the laboratory.
Ceanglaítear an aicil le hadamh eile.
The acyl is bonded to another atom.

Other nouns in Irish

More everyday Irish nouns to learn next.

Acyl in Irish: frequently asked questions

What is the Irish for acyl?

The Irish for acyl is aicil (pronounced “AK-il”). It’s a feminine noun and the plural is aicilí.

How do you pronounce aicil in Irish?

Aicil is said like “AK-il” (IPA /ˈakʲɪlʲ/).

What is the plural of acyl in Irish?

The plural of aicil is aicilí; with the article, na haicilí means “the acyls”. The genitive plural is aicilí, as in airíonna na n-aicilí (the properties of the acyls).

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

Irish nouns beginning with a vowel take a prefix after certain words: an aicil (the acyl), a haicil (her acyl), a n-aicil (their acyl), na haicilí (the acyls).

Is 'aicil' the same as 'aicéatail'?

No. 'Aicil' is the general term for the group RCO-, while acetyl is one particular type of acyl.

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