virtual focus
virtual focus · virtual foci · virtual focuses
A point from which light or other radiation apparently emanates, such as in the…A point from which light or other radiation apparently emanates, such as in the virtual image produced by a plane mirror.
Meaning
1 senses(countable, uncountable)A point from which light or other radiation apparently emanates, such as in the virtual image produced by a plane mirror.
Forms
plural: virtual foci / virtual focuses / virtual focusses| Singular | virtual focus |
|---|---|
| Plural | virtual foci / virtual focuses / virtual focusses |
regular
Lessons for this word
2 lessons- A1Plural nouns — Because its plural is irregular
- A1Countable and uncountable nouns — Because it can be uncountable