From semi- + diaphanous. <span class="searchmatch">semidiaphanous</span> (not comparable) Half or imperfectly transparent; translucent. 1729, J[ohn] Woodward, “Classis V. Corpora Coralloidea...
From semi- + diaphaneity. semidiaphaneity (uncountable) The property of being <span class="searchmatch">semidiaphanous</span>....
(physics) Isorefractive, having an identical refractive index. adiaphanous <span class="searchmatch">semidiaphanous</span> undiaphanous diaphanously diaphanousness transparent; allowing light...