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Myelin in Irish (Miailin): Meaning, Pronunciation, Usage

The Irish for myelin is miailin, a feminine noun.
Updated October 2026Report a mistake

How to say “myelin” in Irish

Irish:
miailin
English:
myelin
Word type:
noun
Gender:
feminine
Pronunciation:
“MEE-uh-lin”  /ˈmʲiəlʲinʲ/
Various forms
Genitive singular:
miailine, na miailine (e.g. truaille miailine, myelin sheath)

What does “miailin” mean?

myelin
Myelin is the fatty substance that forms a protective sheath around many nerve fibres.Also: myelin sheath, nerve sheath.

“Miailin” with the article

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

an mhiailin
the myelin
Lenition: m becomes mh after an (feminine noun)

“Miailin” in a sentence: Irish examples

Common Irish sentences using miailin, the Irish word for myelin.

Is substaint shaillte í miailin.
Myelin is a fatty substance.
Clúdaíonn an mhiailin snáithíní néaróg.
Myelin covers nerve fibres.
Déantar damáiste don mhiailin i scléaróis iolrach.
Myelin is damaged in multiple sclerosis.
Cuireann miailin le luas na gcomharthaí néarógacha.
Myelin speeds up nerve signals.
Tá easpa miailine ar na néaróga sin.
Those nerves lack myelin.
D'fhoghlaimíomar faoin miailin sa rang bitheolaíochta.
We learned about myelin in biology class.
Bíonn ciseal tiubh miailine timpeall ar an aiseon.
A thick layer of myelin surrounds the axon.

Other nouns in Irish

More everyday Irish nouns to learn next.

Myelin in Irish: frequently asked questions

What is the Irish for myelin?

The Irish for myelin is miailin (pronounced “MEE-uh-lin”). It’s a feminine noun.

How do you pronounce miailin in Irish?

Miailin is said like “MEE-uh-lin” (IPA /ˈmʲiəlʲinʲ/).

Does miailin have a plural?

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

Why does miailin change to mhiailin?

After words like mo (my) and do (your) the first letter is lenited: mo mhiailin. After ár (our) it stays ár miailin, because m does not take eclipsis.

Is 'miailin' related to the word for bone marrow?

Both come from the Greek word for marrow, but bone marrow in Irish is 'smior', while 'miailin' is only the nerve-sheath substance.

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