Crossword clue: flat on one side and concave on the other
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
flat on one side and concave on the other
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Similar clues
plane or flat on one side, and concave on the other; as, a plano-concave lens. see lens.
56% similar
→ planoconcave