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adjective

biconcave

concave on both sides

In a sentence

Three example sentences with biconcave, each labelled with its topic.

  • A healthy red blood cell is biconcave, dented in the middle like a doughnut that never quite opened.

    Medicine

  • A biconcave element spreads the light outward, which is why it sits at the front of a wide lens.

    Photography

  • Grind the glass thinner in the middle than at the rim and you have a biconcave disc that scatters a beam.

    Science

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Found in these word lists

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