This is the 12995th most frequent Russian word.
лосиной
"Лосиной" means "of or relating to an elk/moose."
The word 'лосиной' describes an attribute compared to a moose, serving as an adjective.
У него была лосиной выносливость.
He had the endurance of a moose.
The word 'лосиной' refers to a material derived from a moose, serving as an adjective modifying the noun 'fur'.
Лосиной мех стал редкостью в этих краях.
Moose fur has become rare in these areas.
The word 'лосиной' relates to something belonging to a moose, used as an adjective in a possessive sense.