aeroscopic
/ˌɛːrə(ʊ)ˈskɒpɪk/adjective
1Involving or relating to an aeroscope.
2 Entomology. Designating a layer or area in the chorion in many insect eggs that contains a meshwork of air spaces and is involved in gaseous exchange.
Origin
Early 19th century (in an earlier sense). From aero- + -scopic.