IMPERFORATION
\ɪmpˌɜːfəɹˈe͡ɪʃən], \ɪmpˌɜːfəɹˈeɪʃən], \ɪ_m_p_ˌɜː_f_ə_ɹ_ˈeɪ_ʃ_ə_n]\
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By William R. Warner
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Absence of a natural aperture; as, of the mouth, anus, vulva, nostrils, etc. It is congenital, being dependent upon faulty conformation.
By Robley Dunglison
By Willam Alexander Newman Dorland
Word of the day
basidiomycota
- comprises fungi bearing the spores on basidium: Gasteromycetes (puffballs); Tiliomycetes (comprising orders Ustilaginales (smuts) and Uredinales (rusts)); Hymenomycetes (mushrooms; toadstools; agarics; bracket fungi); in some classification systems considered a division of kingdom comprises fungi bearing spores on a basidium; includes Gasteromycetes (puffballs) Tiliomycetes comprising the orders Ustilaginales (smuts) and Uredinales (rusts) Hymenomycetes (mushrooms, toadstools, agarics bracket fungi).