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Antibody in Irish (Frithábhar): Meaning, Pronunciation, Usage

The Irish for antibody is frithábhar, a masculine noun (plural frithábhair).
Updated October 2026Report a mistake

How to say “antibody” in Irish

Irish:
frithábhar
English:
antibody
Word type:
noun
Gender:
masculine
Pronunciation:
“FRIH-aw-wur”  /ˈfʲɾʲɪhɑːwəɾ/
Various forms
Plural:
frithábhair (antibodies)
Genitive singular:
frithábhair, an fhrithábhair (e.g. struchtúr an fhrithábhair, the structure of the antibody)
Genitive plural:
frithábhar, na bhfrithábhar (e.g. leibhéal na bhfrithábhar, the level of the antibodies)

What does “frithábhar” mean?

antibody
A protein produced by the immune system in the blood that recognises and fights a particular foreign substance such as a virus.Also: antibodies, immune protein.

“Frithábhar” with the article

The plural of antibody in Irish is frithábhair. Here is frithábhar after the article (an t-alt), in the singular and the plural.

an frithábhar
the antibody
No change after an
na frithábhair
the antibodies
Plural: no change after na

“Frithábhar” in a sentence: Irish examples

Common Irish sentences using frithábhar, the Irish word for antibody.

Is próitéin é frithábhar.
An antibody is a protein.
Déanann an corp frithábhair i gcoinne víris.
The body makes antibodies against viruses.
Bhí frithábhair i mo chuid fola.
There were antibodies in my blood.
Thástáil an dochtúir leibhéal na bhfrithábhar.
The doctor tested the level of antibodies.
Ceanglaíonn an frithábhar leis an antaigin.
The antibody binds to the antigen.
Cuireann vacsaín frithábhair á ndéanamh sa chorp.
A vaccine causes antibodies to be made in the body.
Tá cruth an fhrithábhair an-tábhachtach.
The shape of the antibody is very important.

Other nouns in Irish

More everyday Irish nouns to learn next.

Antibody in Irish: frequently asked questions

What is the Irish for antibody?

The Irish for antibody is frithábhar (pronounced “FRIH-aw-wur”). It’s a masculine noun and the plural is frithábhair.

How do you pronounce frithábhar in Irish?

Frithábhar is said like “FRIH-aw-wur” (IPA /ˈfʲɾʲɪhɑːwəɾ/).

What is the plural of antibody in Irish?

The plural of frithábhar is frithábhair; with the article, na frithábhair means “the antibodies”. The genitive plural is frithábhar, as in leibhéal na bhfrithábhar (the level of the antibodies).

Why does frithábhar change to fhrithábhar or bhfrithábhar?

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

What is the difference between frithábhar and antaigin?

An antaigin is the foreign substance that triggers the immune response, while the frithábhar is the protein the body makes to fight it.

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