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sigmoid    
a. S字形的,S状弯曲部的,C字形的
n. 反曲

S字形的,S状弯曲部的,C字形的反曲

sigmoid
adj 1: curved in two directions (like the letter S)
2: of or relating to the sigmoid flexure in the large intestine
[synonym: {sigmoid}, {sigmoidal}]

Sigmoid \Sig"moid\, Sigmoidal \Sig*moid"al\, a. [Gr. ???; ???
sigma e'i^dos form, likeness: cf. F. sigmo["i]de.]
Curved in two directions, like the letter S, or the Greek
[sigmat].
[1913 Webster]

{Sigmoid flexure} (Anat.), the last curve of the colon before
it terminates in the rectum. See Illust. under
{Digestive}.

{Sigmoid valves}. (Anat.) See {Semilunar valves}, under
{Semilunar}.
[1913 Webster]


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英文字典中文字典相关资料:


  • Sigmoid - Wikipedia
    Sigmoid means resembling the lower-case Greek letter sigma (uppercase Σ, lowercase σ, lowercase in word-final position ς) or the Latin letter S Specific uses include:
  • SIGMOID Definition Meaning - Merriam-Webster
    Usually, though, sigmoid is used in contexts relating to the sigmoid colon-the contracted and crooked part of the colon immediately above the rectum Sigmoid comes from sigma, the name of the 18th letter of the Greek alphabet





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