- medullary layer
- noun
: the layer of loosely interwoven threads just below the algal layer in some lichens
Useful english dictionary. 2012.
medullary layer
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Medullary — Med ul*la*ry, a. [L. medullaris, fr. medulla marrow: cf. F. m[ e]dullaire.] 1. (Anat.) (a) Pertaining to, consisting of, or resembling, marrow or medulla. (b) Pertaining to the medula oblongata. [1913 Webster] 2. (Bot.) Filled with spongy pith;… … The Collaborative International Dictionary of English
Medullary groove — Medullary Med ul*la*ry, a. [L. medullaris, fr. medulla marrow: cf. F. m[ e]dullaire.] 1. (Anat.) (a) Pertaining to, consisting of, or resembling, marrow or medulla. (b) Pertaining to the medula oblongata. [1913 Webster] 2. (Bot.) Filled with… … The Collaborative International Dictionary of English
Medullary rays — Medullary Med ul*la*ry, a. [L. medullaris, fr. medulla marrow: cf. F. m[ e]dullaire.] 1. (Anat.) (a) Pertaining to, consisting of, or resembling, marrow or medulla. (b) Pertaining to the medula oblongata. [1913 Webster] 2. (Bot.) Filled with… … The Collaborative International Dictionary of English
Medullary sheath — Medullary Med ul*la*ry, a. [L. medullaris, fr. medulla marrow: cf. F. m[ e]dullaire.] 1. (Anat.) (a) Pertaining to, consisting of, or resembling, marrow or medulla. (b) Pertaining to the medula oblongata. [1913 Webster] 2. (Bot.) Filled with… … The Collaborative International Dictionary of English
medullary sheath — n. 1. Anat. a layer of myelin forming a sheath around certain nerve fibers 2. Bot. a ring of primary xylem around the pith of some stems … English World dictionary
Medullary ray (anatomy) — In anatomy, the medullary ray is the middle part of the cortical lobule or renal lobule, consisting of a group of straight tubes to the collecting ducts. Their name is potentially misleading the medullary refers to their destination, not their… … Wikipedia
medullary sheath — noun a layer of myelin encasing (and insulating) the axons of medullated nerve fibers • Syn: ↑myelin sheath • Hypernyms: ↑sheath, ↑case • Part Holonyms: ↑medullated nerve fiber, ↑ … Useful english dictionary
Medullary interstitium — The medullary interstitium is the tissue surrounding the loop of Henle in the renal medulla. It functions in renal water reabsorption by building up a high hypertonicity, which draws water out of the thin descending limb of the loop of Henle and… … Wikipedia
layer — A sheet of one substance lying on another and distinguished from it by a difference in texture or color or by not being continuous with it. SEE ALSO: stratum, lamina. SYN: panniculus. ameloblastic l. the internal l. of the enamel organ. SYN: enam … Medical dictionary
medullary sheath — 1. Bot. a narrow zone made up of the innermost layer of woody tissue immediately surrounding the pith in plants. 2. Anat. See myelin sheath. [1840 50] * * * … Universalium
