CATHETER, NASAL
\kˈaθɛtə], \kˈaθɛtə], \k_ˈa_θ_ɛ_t_ə]\
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An instrument, invented by M. Gensoul, of Lyons, for catheterizing the ductus ad nasum. It is hook-shaped; the extremity, bent at a right angle, is about an inch in length, suited to the distance of the lower orifice of the duct from the nostril, and likewise to the length and form of the duct, with a slight spiral turn.
By Robley Dunglison
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).