lodestar

名词 lodestar:

1. guiding star; a star that is used as a reference point in navigation of astronomy
   同义词：loadstar
2. something that serves as a model or guide
   同义词：loadstar

lodestar 也作 load.star

n.（名词）
A star, especially Polaris, that is used as a point of reference.
用作指引的星，尤指北极星
A guiding principle, interest, or ambition.
指导原则：起引导作用的原则、兴趣或抱负

来源：
Middle English lodesterre
中古英语 lodesterre
lode [way] * see lode
lode [道路] *参见 lode
sterre [star] * see star
sterre [星] *参见 star