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单词 rhizodontropy
释义

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rhizodontropy
rhizodontropy n.
Brit. /ˌrʌɪzə(ʊ)ˈdɒntrəpi/
,
U.S. /ˌraɪzəˈdɑntrəpi/
,
/ˌraɪzoʊˈdɑntrəpi/
(also †risodontropy) [apparently an alteration of rhizodontrypy n. after -tropy comb. form, although this is semantically inexplicable] Dentistry (now disused) (a) = rhizodontrypy n.; (b) the operation of placing a pivoting crown on a root of a tooth (obsolete rare).Sense (b) is apparently only attested in dictionaries or glossaries.
ΚΠ
1855 Amer. Jrnl. Dental Sci. 5 477 It is not the province of this paper to discuss the utility of risodontropy.
1876 T. Bryant Pract. Surg. (ed. 2) I. xiii. 561 The performance of rhizodontropy, coupled or not with a direct opening into the abscess to evacuate the pus.
1897 New Sydenham Soc. Lexicon Rhizodontropy,..pivoting an artificial crown on the root of a tooth.
1903 Dominion Dental Jrnl. 15 747 The first who strongly advocated the advantage of arsenious acid over the extirpation of the living pulps by means of instruments or by the actual cautery or over the ‘Hullihen operation’ known as rhizodontropy.
extracted from rhizo-comb. form
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