EPITHEM
\ˈɛpɪθəm], \ˈɛpɪθəm], \ˈɛ_p_ɪ_θ_ə_m]\
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A group of specialized colourless parenchyma cells surrounding a space in the tissue of a plant and forming a hydathode; an excrescence on the beak of birds.
By Henderson, I. F.; Henderson, W. D.
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This term is applied to every topical application, which cannot be classed either under ointments or plasters. Three sorts of epithems have been usually distinguished, - the liquid, dry, and soft, which comprise fomentations, bags filled with dry substances, and cataplasms.
By Robley Dunglison
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A medicinal preparation for external application, such as a poultice, exclusive, according to some authors, of plasters and ointments. [Gr.]
By Smith Ely Jelliffe
By Thomas Sheridan
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.