pycnodysostosis
/ˌpɪknəʊˌdɪsɒˈstəʊsɪs/(also pyknodysostosis) Medicine
noun
An inherited (autosomal recessive) disorder in which there is excessive density and fragility of bones, typically resulting in short stature, an enlarged skull with widened sutures, a small jaw, and abnormality of the fingertips.
Origin
1960s. From pycno- + dys- + -ostosis, after French pycnodysostose.