| 释义 |
planetismal, a. and n. Astr.|plænɪˈtɪzməl|
[Alteration of planetesimal a. and n.]
= planetesimal a. and n.
1910Westm. Gaz. 16 Apr. 12/3 He accepts what is known as the ‘planetismal hypothesis’, which is, in his opinion, the most positive advance in natural science which has been made for a very long time. 1938Nature 5 Nov. 843 The planetismal hypothesis is the parent of the more recent tidal theories. 1970Sci. Jrnl. May 32/1 This theory has it that the Moon formed out of the coagulation of a ‘sediment-ring’ of planetismals which originally circled the Earth. |