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Antinode in Irish (Frithnód): Meaning, Pronunciation, Usage

The Irish for antinode is frithnód, a masculine noun (plural frithnóid).
Updated October 2026Report a mistake

How to say “antinode” in Irish

Irish:
frithnód
English:
antinode
Word type:
noun
Gender:
masculine
Pronunciation:
“FRIH-node”  /ˈfʲɾʲɪhn̪ˠoːdˠ/
Various forms
Plural:
frithnóid (antinodes)
Genitive singular:
frithnóid, an fhrithnóid (e.g. suíomh an fhrithnóid, position of the antinode)
Genitive plural:
frithnód, na bhfrithnód (e.g. suíomh na bhfrithnód, the positions of the antinodes)

What does “frithnód” mean?

antinode
In physics, a point in a standing wave where the vibration or amplitude is at its greatest.Also: anti-node, loop.

“Frithnód” with the article

The plural of antinode in Irish is frithnóid. Here is frithnód after the article (an t-alt), in the singular and the plural.

an frithnód
the antinode
No change after an
na frithnóid
the antinodes
Plural: no change after na

“Frithnód” in a sentence: Irish examples

Common Irish sentences using frithnód, the Irish word for antinode.

Is é frithnód an pointe is mó creathadh.
An antinode is the point of greatest vibration.
Tá an frithnód idir dhá nód.
The antinode is between two nodes.
Tomhais aimplitiúid an fhrithnóid.
Measure the amplitude of the antinode.
Tá trí fhrithnód ar an téad.
There are three antinodes on the string.
Bíonn na frithnóid ag creathadh go láidir.
The antinodes vibrate strongly.
Marcáil gach frithnód ar an léaráid.
Mark every antinode on the diagram.
Tá an t-aer ag gluaiseacht go mór ag an bhfrithnód.
The air moves a lot at the antinode.

Other nouns in Irish

More everyday Irish nouns to learn next.

Antinode in Irish: frequently asked questions

What is the Irish for antinode?

The Irish for antinode is frithnód (pronounced “FRIH-node”). It’s a masculine noun and the plural is frithnóid.

How do you pronounce frithnód in Irish?

Frithnód is said like “FRIH-node” (IPA /ˈfʲɾʲɪhn̪ˠoːdˠ/).

What is the plural of antinode in Irish?

The plural of frithnód is frithnóid; with the article, na frithnóid means “the antinodes”. The genitive plural is frithnód, as in suíomh na bhfrithnód (the positions of the antinodes).

Why does frithnód change to fhrithnód or bhfrithnód?

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

What is the opposite of 'frithnód'?

The opposite is 'nód' (node), a point in a standing wave with no vibration; 'frith-' means 'anti-'.

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