of or relating to a semivowel
[sem-ee-vi-tree-uh s, sem-ahy-] /ˌsɛm iˈvɪ tri əs, ˌsɛm aɪ-/ adjective, (of ceramics) 1. partially vitreous. semivitreous /ˌsɛmɪˈvɪtrɪəs/ adjective 1. partially vitreous 2. (ceramics) not wholly impervious to liquid
- Senile plaque
senile plaque n. A spherical mass of amyloid fibrils surrounded by distorted interwoven neuronal processes, found in the cerebral cortex in Alzheimer’s disease. Also called neuritic plaque.
- Senile pruritus
senile pruritus n. Itching associated with degenerative changes that occur in aging skin.
- Senile psychosis
senile psychosis n. A mental disturbance of old age and related to degenerative cerebral processes.
- Senile retinoschisis
senile retinoschisis n. Retinoschisis occurring most often in individuals over the age of 40, and affecting the outer plexiform layer of the retina.