EPIPHRAGM
\ˈɛpɪfɹˌam], \ˈɛpɪfɹˌam], \ˈɛ_p_ɪ_f_ɹ_ˌa_m]\
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A membranaceous or calcareous septum with which some mollusks close the aperture of the shell during the time of hibernation, or aestivation.
By Oddity Software
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A membranaceous or calcareous septum with which some mollusks close the aperture of the shell during the time of hibernation, or aestivation.
By Noah Webster.
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A layer of hardened mucous matter, or a calcareous plate, closing the opening of certain gastropod shells ; the membrane which closes the capsule in certain Mosses ; a closing membrane in the sporophores of certain Fungi.
By Henderson, I. F.; Henderson, W. D.
Word of the day
Proto Oncogene Proteins c erbB 2
- cell surface protein-tyrosine kinase that is found to be overexpressed in significant number adenocarcinomas. It has extensive homology can heterodimerize EGF EPIDERMAL GROWTH FACTOR), 3 receptor (RECEPTOR, 3) and the 4 receptor. Activation of erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB family members. EC 2.7.11.-.