sednoid

词形变化

sednoids 复数 sednoids

释义与例句

n.
  1. 1.

    A trans-Neptunian object of the inner Oort cloud, that is, one with a perihelion greater than 75 AU.

    天文

    Scientists are beginning to discover more sednoids thanks to better search efforts.

词源

From Sedn(a) + -oid. In turn, from Inuktitut ᓴᓐᓇ (sanna, “Inuit goddess, the Mother of the Sea”). Named after the dwarf planet, the prototype of its class.

来源：wiktionary