Definition of "vesper"

vesper

/ˈvɛspɚ/

noun
plural vespers
1. The bell that summons worshipers to vespers; the vesper-bell
2. (poetic) The evening.
3. A vesper martini.
4. A vesper bat.
adjective
not comparable
1. (poetic) Evening.
  Quotations
  On Sumter’s rampart, that sweet eve, / I heard the vesper bugle play […]
  1908, James Ryder Randall, “On the Rampart”, in Maryland, my Maryland, and other poems, Baltimore, Md., New York: John Murphy Company, page 28