Backsheet

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The bottom layer of a solar cell.
  2. 2
    The outermost layer of a diaper or menstrual pad, made from breathable waterproof materials to prevent leakage.

Etymology

back + sheet

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.