rare. [f. BOSOM v. + -ER1.] One who or that which bosoms, in various senses.
a. 1821. Keats, Sonn., Wks. (1884), 363. Blue! ’Tis the life of heaven … The bosomer of clouds.
1844. Ld. Houghton, In Gondola, in Mem. Many Sc., 98. Bosomer of the poet’s wearied mind, Dear boat!
