проя́вка

noun, inanimate

Very rarely used word (top 60,000)

1.
development (of film/photos), processing
Example:
Я отдал пленку на проявку.
I took the film for development.
2.
manifestation, display, appearance, showing
Example:
Эта реакция была проявкой его характера.
This reaction was a manifestation of his character.

Examples

Благодаря цифрово́й фотогра́фии никто, похоже, уже не отдаёт плёнку на проя́вку.Thanks to digital photography it seems that no one has their film developed anymore.