Emily Dickinson Lexicon

RU'GOSE, or RU'GOUS, a. [L. rugosus, from ruga, a wrinkle.]

1. Wrinkled; full of wrinkles. – Wiseman.
2. In botany, a rugose leaf is when the veins are more contracted than the disk, so that the latter rises into little inequalities, as in sage, primrose, cowslip, &c. – Martyn. Smith.