Having three laminae.
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tri·lam·i·nar (')trī-'lam-ə-nər adj having or built up of three layers
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tri·lam·i·nar (tri-lamґĭ-nər) consisting of three layers.Medical dictionary. 2011.
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tri·lam·i·nar (tri-lamґĭ-nər) consisting of three layers.Medical dictionary. 2011.