[rәu'pælik]
adj.
楔形诗的(指同一行内每一词都比前一词多一音节或同一节内每一行都比前一行多一音步的诗歌作法,其视觉效果为一自上而下渐呈伸长的楔形或金字塔形)

Rhopalic \Rho*pal"ic\, a. [Gr. ???? club-shaped; fr. ??? a club:
cf. F. rhopalique.] (Pros.)
Applied to a line or verse in which each successive word has
one more syllable than the preceding.