† mesistemn.

Origin: A borrowing from German. Etymon: German Mesistem.

Etymology: < German Mesistem (E. Russow 1872 in Mém. de l'Acad. Impériale des Sci. de St. Pétersbourg 19 178), shortened < Mesomeristem mesomeristem n. N.E.D. (1906) gives only the pronunciation (me·sistem) /ˈmɛsɪstɛm/.

Botany. Obsolete.

= mesomeristem n.

ΚΠ

1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns viii. 394 Russow maintains essentially the same view, calling Sanio's primary pith Endomeristem, the zone surrounding it Exomeristem; the latter is divided into the Mesomeristem, which is the inner layer producing the vascular bundles, and the Perimeristem, which is the outer zone, forming the external cortex and the Dermatogen. Endistem, Existem, Mesistem, and Peristem are abbreviated expressions for these successive layers.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2019).

单词	mesistem
释义	† mesistemn. Origin: A borrowing from German. Etymon: German Mesistem. Etymology: < German Mesistem (E. Russow 1872 in Mém. de l'Acad. Impériale des Sci. de St. Pétersbourg 19 178), shortened < Mesomeristem mesomeristem n. N.E.D. (1906) gives only the pronunciation (me·sistem) /ˈmɛsɪstɛm/. Botany. Obsolete. = mesomeristem n. ΚΠ 1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns viii. 394 Russow maintains essentially the same view, calling Sanio's primary pith Endomeristem, the zone surrounding it Exomeristem; the latter is divided into the Mesomeristem, which is the inner layer producing the vascular bundles, and the Perimeristem, which is the outer zone, forming the external cortex and the Dermatogen. Endistem, Existem, Mesistem, and Peristem are abbreviated expressions for these successive layers. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2019). < n.1884
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