The Collaborative International Dictionary
Doubly serrate
Serrate \Ser"rate\, Serrated \Ser"ra*ted\, a. [L. serratus, fr. serra a saw; perhaps akin to secare to cut, E. saw a cutting instrument. Cf. Sierra.]
Notched on the edge, like a saw.
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(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.