D defs.my
Entry 1 sense Webster, 1913

Semicolumnar

· Sem·i·co·lum·nar · IPA
01 a. Like a semicolumn; flat on one side and round on the other; imperfectly columnar.
  1. 1.
    Like a semicolumn; flat on one side and round on the other; imperfectly columnar.