Word Pronunciation & Dictionary

focal plane

Word Rarity Rare

Frequency: Zipf frequency 3.63 in modern English

Syllables: fo-cal -plane
IPA

17

Scrabble Score

10

Letters

3

Syllables

8

Unique Chars

Meaning

noun

Any plane perpendicular to the axis of a lens or mirror.

noun

Such a plane, in a camera, microscope etc, in which the real image is in focus.

Inflected Forms

focal planes (plural)

Questions

What does focal plane mean?: Any plane perpendicular to the axis of a lens or mirror.

How to pronounce focal plane

Open the pronunciation page — Open the Speakur entry for “focal plane”.
Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
Play the audio — Click Play to hear reference audio for “focal plane”.
Repeat and practice — Say “focal plane” aloud, matching stress and vowels until it feels natural.