the GNU version of the Collaborative International Dictionary of English
n. One who blockades.
n. A vessel employed in blockading.
The Century Dictionary and Cyclopedia
n. One who or that which blockades; especially, a vessel employed in blockading.
Word Usage
"But the "blockader" recognized Bud and had no fears of his playing informer, so with an amused smile on his bearded face he stepped into sight with a tin cup invitingly out-held."