RARA AVIS
\ɹˈɑːɹəɹ ˈavɪs], \ɹˈɑːɹəɹ ˈavɪs], \ɹ_ˈɑː_ɹ_ə_ɹ ˈa_v_ɪ_s]\
Word of the day
ma'trix of the vertebrae
- A membranous cells formed around notochord from inner part the protovertebral column previous to cartilaginous differentiation of permanent vertebrae in embryo.