corrugated
adjective C2- Marked with parallel folds, ridges or furrows.
- Bent into regular curved folds or grooves.
From the library
Within, the ceilings were corrugated with heavy oaken beams, and the uneven floors sagged into sharp curves.
Murray constructed a corrugated iron shed in his garden, which he affectionately called the Scriptorium, to house the massive influx of mail.
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