Meaning of the word flatline in English

What does flatline mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

flatline

US /ˈflæt.laɪn/
UK /ˈflæt.laɪn/

Verb

1.

to be at a low level and not increase:

Example:
Have widescreen TV prices finally flatlined?
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