| 释义 |
toothing, vbl. n.|ˈtuːθɪŋ|
[f. tooth n. or v. + -ing1.]
1. Development or ‘cutting’ of the teeth, dentition: = teething vbl. n. 1. Obs. or rare.
c1440Pallad. on Husb. i. 665 As seek ar they [peacocks] as childron in tothynge. 1656Ridgley Pract. Physick 323 Toothing of Children is about the seventh Moneth. 1796E. Darwin Zoon. ii. 51 The pain of toothing often begins much earlier than is suspected.
2. A structure or formation (natural or artificial) consisting of teeth or tooth-like projections; such teeth collectively; dentation, serration.
1611Cotgr., Allochons d'un rouët, the teeth, or toothing, of a wheele, in a clocke. 1753Baker in Phil. Trans. XLVIII. 122 The toothing in the middle thereof almost proves that part to have been the palate of some animal. 1845Lindley Sch. Bot. i. (1858) 9 If the toothings are..like those of a saw, the leaves are serrate. 1872Coues N. Amer. Birds 236 A toothing of the under mandible.
b. spec. in Building. Bricks or stones left projecting from a wall to form a bond for additional work to be built on; the bond or attachment thus formed; the construction of this. Also fig.
1672Phil. Trans. VII. 4081 In the first Wall there are Stones in toothings, from the top to the bottom. 1674Blount Glossogr., Toothing, the working in of Bricks in a party-wall. 1769H. Malden in Willis & Clark Cambridge (1886) I. 490 On the outer wall, may be perceived Toothings, where the Building was formerly joined. 1841Civil Eng. & Arch. Jrnl. IV. 395/1 Regular half brick toothings were inserted, at intervals of 2 feet 3 inches apart.
3. The process of forming teeth or serrations; the furnishing (of a saw, etc.) with teeth.
1833J. Holland Manuf. Metal II. 56 The toothing [of a sickle] is effected by a small well tempered chisel and a hammer. 1884C. G. W. Lock Workshop Receipts Ser. iii. 287/1 After toothing comes hardening [of saws].
4. attrib. and Comb., as toothing-course, toothing-stone (see 2 b); toothing-plane, a plane having the iron almost upright, with a serrated edge, used to score and roughen a surface; see tooth n. 3 d.
1703T. N. City & C. Purchaser 51 Lay it on the last Toothing Course to bear it. 1847Smeaton Builder's Man. 95 Made somewhat rough with either a rasp or toothing-plane. 1875Brash Eccl. Archit. Irel. 18 The chancel has disappeared; toothing-stones..show it to have been 12 ft. wide. |