ser·rate /ˈsɛrˌet, səˈret/
  (a.)鋸齒狀的
  ser·rate /ˈsɛ(ə)rˌet, səˈret/ 形容詞
  (拉serratus)鋸齒形的,有鋸齒的,有粗鋸齒的
  Ser·rate Ser·ra·ted a.
  1. Notched on the edge, like a saw.
  2. Bot. Beset with teeth pointing forwards or upwards; as, serrate leaves.
  Doubly serrate, having small serratures upon the large ones, as the leaves of the elm.
  Serrate-ciliate, having fine hairs, like the eyelashes, on the serratures; -- said of a leaf.
  Serrate-dentate, having the serratures toothed.
  ◄ ►
  serrate
       adj : notched like a saw with teeth pointing toward the apex [syn:
              serrated, saw-toothed, toothed, notched]
       v : make saw-toothed or jag the edge of; "serrate the edges of
           the teeth"