Definitions for ymirˈi mɪr, ˈü mɪr
Random House Webster's College Dictionary
Y•mirˈi mɪr, ˈü mɪr(n.)
(in Norse myth) a primordial giant slain by Odin and his brothers, who fashioned the earth from his body.
(Norse mythology) the primeval giant slain by Odin and his brothers and from whose body they created the world: the sea from his blood; the earth from his flesh; the mountains from his bones; the sky from his skull
The Nuttall Encyclopedia
a giant in the Norse mythology, slain by the gods, and out of whose carcass they constructed the world, his blood making the sea, his flesh the land, his bones the rocks, his eyebrows Asgard, the dwelling-place of the gods, his skull the vault of the firmament, and his brains the clouds.