| 释义 |
mucus|ˈmjuːkəs|
[a. L. mūcus, also muccus, mucus of the nose, cogn. w. Gr. µύσσεσθαι (:—*muky-) to blow the nose, µυκτήρ nose, nostril; the root appears also (with consonant change due to the nasal infix) in L. ē-mungĕre to blow the nose.]
1. A viscid or slimy substance not miscible with water, secreted by the mucous membrane of animals.
1661Lovell Hist. Anim. & Min. 285 Salivous mucus which they vomit out when pricked, is emplastick. 1739‘R. Bull’ tr. Dedekindus' Grobianus 209 When to the Mouths of some these Humours rise, Long in their Mouths the plenteous Mucus lies. 1805Bostock in Nicholson's Jrnl. XI. 251 Animal mucus or mucilage enters largely into the constitution of many parts of the body. 1881Mivart Cat 169 A fluid, named mucus, is almost universally present where mucous membrane exists.
2. Bot. A gummy or glutinous substance soluble in water, found in all plants.
1839Lindley Introd. Bot. i. i. (ed. 3) 2 Meyen admits the fact of the presence of this intercellular mucus [sc. in plants]. Ibid. ii. 50 External to the epidermis is a thin homogeneous membrane, formed of organic mucus. 1875Darwin Insectiv. Pl. ix. 209 Some of these leaves secreted much mucus.
3. A viscid substance exuded by certain animals, esp. the slime of fishes.
1835–6[see mucus-clad in 4]. 1855W. S. Dallas Syst. Nat. Hist. II. 21 Myxine glutinosa..receives its specific name..from the immense quantity of mucus which it can give off from its skin. 1880Günther Fishes 49 In many fishes..the ducts of this muciferous system are..filled with mucus.
4. attrib. and Comb., as mucus corpuscle, mucus duct; mucus-clad, mucus-like, mucus-producing adjs.
1835–6Todd's Cycl. Anat. I. 529/1 *Mucus-clad fishes.
1846G. E. Day tr. Simon's Anim. Chem. II. 87 Thin watery pus, rather larger than the *mucus-corpuscles.
1854Owen Skel. & Teeth in Orr's Circ. Sci., Org. Nat. I. 163 In *Mucus-ducts.
1845Encycl. Metrop. VII. 220/2 A greyish-white *mucus-like matter.
1879Foster Text Bk. Physiol. (ed. 3) 257 *Mucus-producing cells. |