columbiad

词形变化

columbiads 复数 columbiads

释义与例句

n.
  1. 1.

    A form of cannon from the 19th century, mostly used for seacoast protection. It is a large-caliber, smoothbore, muzzle-loading cannon designed for launching shot or shells with heavy charges of powder, at both high and low angles of elevation.

    历史 政治 军事

词源

From Columbia (“the United States”).The term was first used for a type of cannon employed at Fort Columbus on Governor's Island in New York in 1808.

来源：wiktionary