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单词 presacral
释义

> as lemmas

presacral
presacral adj.
Brit. /(ˌ)priːˈseɪkr(ə)l/
,
/(ˌ)priːˈsakr(ə)l/
,
U.S. /ˌpriˈseɪkrəl/
Anatomy situated or occurring anterior to or in front of the sacrum; esp. designating vertebrae anterior or superior to the sacrum.
ΚΠ
1876 O. C. Marsh in Amer. Jrnl. Sci. 111 165 In D[inoceras] mirabile the entire brain was actually so diminutive that it could apparently have been drawn through the neural canal of all the presacral vertebræ, certainly through the cervicals and lumbars.
1889 H. A. Nicholson & R. Lydekker Man. Palæontol. (ed. 3) II. 1056 There are 29 vertebræ, of which 18 are presacral.
1964 L. C. Martin Clin. Endocrinol. (ed. 4) i. 37 The search for an adrenal tumour may require straight films of the adrenal areas, intravenous pyelography, and films taken after presacral insufflation of air.
1993 Nature 7 Jan. 65/1 There are no pneumatic cavities in the presacral vertebrae, as often occurs among saurischians.
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