| 释义 |
▪ I. ‖ moellon1 Arch.|mwalɔ̃|
[Fr., altered form (? assimilated to moelle marrow) of OF. moilon, meulon, moiron, of obscure origin.]
Rubble used in masonry; = rag n.2
[1836in Parker Gloss. Archit. (1850) (as Fr.) s.v. Ragstone . 1858 Simmonds Dict. Trade, Moellon (French), rough stones fit for building.] 1875in Knight Dict. Mech.
▪ II. moellon2|ˈmwɛlɒn|
[Presumably Fr., and perh. identical with moellon.]
The fluid obtained when fish-oils are rubbed into hides and recovered by expression, as in the manufacture of chamois leather (cf. degras, dégras a); also, a product made in imitation of this (see quot. 1969). Also called moellon degras.
1897C. T. Davis Manuf. Leather (ed. 2) 227 French moellon oil, strictly speaking, is an expressed oil from chamois tannage, French degras being a mixture of moellon and oil obtained from washing the skins in an alkaline solution. 1922, etc. [see degras, dégras a]. 1939Thorpe's Dict. Appl. Chem. (ed. 4) III. 552 (heading) Analysis of moëllon-dégras. 1969T. C. Thorstensen Pract. Leather Technol. xii. 202 Natural moellon is produced by the oxidation of raw cod liver oil in the tanning of sheep and goat chamois skins. Synthetic moellon is produced by the controlled aeration of raw cod liver oil to the desired oxidation fatty acid value; it results in more hydrophilic properties. |