mesophloemn.

Brit.

/ˌmɛsə(ʊ)ˈfləʊɛm/, U.S.

/ˌmɛzoʊˈfloʊˌɛm/,

/ˌmɛzoʊˈfloʊəm/; see also meso- comb. form.

Forms: 1800s mesophloeum, 1900s– mesophloem, 1900s– mesophloëm. Also with capital initial.

Origin: A borrowing from Latin. Etymon: Latin mesophloeum.

Etymology: < post-classical Latin mesophloeum (H. F. Link Elementa Philosophiae Botanicae (ed. 2, 1837) I. iv. 274) < meso- meso- comb. form + ancient Greek ϕλοιός bark (see phloem n.); subsequently altered in form after phloem n. Compare epiphloem n. N.E.D. (1906) enters this under mesophlœum and gives the pronunciation as (mesoflī·ɒ̆m) /mɛsəʊˈfliːəm/.

Botany. Now historical and rare.

In bark: a layer of (usually green) cells occurring between the periderm and phloem.

ΘΚΠ

the world > plants > part of plant > part of tree or woody plant > wood > [noun] > bark > part of

ross1778

epiphloem1839

mesophloem1839

1839 J. Lindley Introd. Bot. (ed. 3) i. ii. 89 The Mesophlœum of Link, or cellular integument of others, composed of cells usually green.

1861 R. Bentley Man. Bot. 86 The Cellular Envelope or Green Layer, or Mesophlœum... This layer lies between the liber and the epiphlœum, and hence the name Mesophlœum which is applied to it.

1900 B. D. Jackson Gloss. Bot. Terms 156/2 Mesophloëm, the middle, or green bark.

1935 Chambers's Encycl. I. 741/2 Botanists were formerly wont..to distinguish its [sc. bark's] layers as parts of a natural whole, the epidermis and cork, the cellular envelope, and the bast being respectively termed outer, middle, and inner bark, or epi-, meso-, and endophloëm.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	mesophloem
释义	mesophloemn. Brit. /ˌmɛsə(ʊ)ˈfləʊɛm/, U.S. /ˌmɛzoʊˈfloʊˌɛm/, /ˌmɛzoʊˈfloʊəm/; see also meso- comb. form. Forms: 1800s mesophloeum, 1900s– mesophloem, 1900s– mesophloëm. Also with capital initial. Origin: A borrowing from Latin. Etymon: Latin mesophloeum. Etymology: < post-classical Latin mesophloeum (H. F. Link Elementa Philosophiae Botanicae (ed. 2, 1837) I. iv. 274) < meso- meso- comb. form + ancient Greek ϕλοιός bark (see phloem n.); subsequently altered in form after phloem n. Compare epiphloem n. N.E.D. (1906) enters this under mesophlœum and gives the pronunciation as (mesoflī·ɒ̆m) /mɛsəʊˈfliːəm/. Botany. Now historical and rare. In bark: a layer of (usually green) cells occurring between the periderm and phloem. ΘΚΠ the world > plants > part of plant > part of tree or woody plant > wood > [noun] > bark > part of ross1778 epiphloem1839 mesophloem1839 1839 J. Lindley Introd. Bot. (ed. 3) i. ii. 89 The Mesophlœum of Link, or cellular integument of others, composed of cells usually green. 1861 R. Bentley Man. Bot. 86 The Cellular Envelope or Green Layer, or Mesophlœum... This layer lies between the liber and the epiphlœum, and hence the name Mesophlœum which is applied to it. 1900 B. D. Jackson Gloss. Bot. Terms 156/2 Mesophloëm, the middle, or green bark. 1935 Chambers's Encycl. I. 741/2 Botanists were formerly wont..to distinguish its [sc. bark's] layers as parts of a natural whole, the epidermis and cork, the cellular envelope, and the bast being respectively termed outer, middle, and inner bark, or epi-, meso-, and endophloëm. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1839
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