“pericentre”的英文意思_释义_用法

单词

pericentre

释义

pericentre|pɛrɪˈsɛntə(r)|
[f. peri- + centre, after perihelion.]
That point, in the (eccentric) orbit of a body revolving around a centre, at which it is nearest to that centre.
1902Newcomb Study Univ. 159 The point nearest the latter is called the periastron or pericentre, and corresponds to the perihelion of a planetary orbit.
So periˈcentral, a. = pericentric a. 1.
1889Bennett & Murray Cryptog. Bot. 192 These pericentral tubes are often connected with one another and with the axial cell by threads of protoplasm.1890Cent. Dict., Pericentral tubes, in bot., in the so-called polysiphonous seaweeds, the ring of four or more elongated cells surrounding the large central elongated cells.

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