isopiptesis

名词 n.
中文释义

英文释义

名词 n.
  1. An isoline that joins points on a map where the individuals of a particular migratory species arrive at the same time each year.
    — The conclusion that the migration takes place at right angles to the isopipteses seemed justified; but, with regard to the direction of the bird's migration to be ascertained, could not possibly prove more exact than the premises themselves, the methods of inquiry, and the material.

词形变化

isopipteses plural isepiptesis alternative

词源

Refashioning of the earlier spelling isepiptesis, from German Isepiptesen used by Alexander von Middendorff in his 1855 work Die Isepiptesen Russlands, from iso- + Ancient Greek ἐπίπτησις (epíptēsis, “flying down upon”), from ἐπι- (epi-, “upon”) + πτῆσῐς (ptêsĭs, “flight”), from πέτομαι (pétomai, “fly”).
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