flat solid

Từ điển Oxford Learners Wordfinder Dictionary

noun

a flat artifact that is thin relative to its length and width
• Syn:
sheet
• Hypernyms:
artifact, artefact
• Hyponyms:
blackboard, chalkboard, blank, board, film,
plastic film, laminate, membrane, panel, plate, photographic plate,
plate glass, sheet glass, sheet metal, stencil