This is the 8902nd most frequent Russian word.
прокудин
"Прокудин" is a Russian surname and does not have a standalone meaning apart from being a proper noun.
The word 'Прокудин' here is used as a proper noun and represents a last name.
Господин Прокудин был известным художником.
Mr. Prokudin was a famous artist.
Here, 'Прокудин' is again used as a proper noun, highlighting the person's desire or aspiration.
Прокудин мечтал создать что-то уникальное.
Prokudin dreamed of creating something unique.
In this sentence, 'Прокудина' (declined form of 'Прокудин') denotes possession, indicating the photographs created by the person named Prokudin.