diaphanous [dahy-af-uh-nuh s]
1. very sheer and light; almost completely transparent or translucent.
2. delicately hazy.
Origin: 1605-15; < Medieval Latin diaphanus < Greek diaphan (ḗs) transparent (equivalent to diaphan-, stem of diaphaínein to show through (see dia-, -phane) + -ēs adj. suffix) + -ous
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