本初子午线 běn chū zǐ wǔ xiàn

DEFINITIONS

  1. the first meridian
  2. the prime meridian

CHARACTERS

本 běn
HSK 1
root, origin, source; basis
初 chū
HSK 5
beginning, initial, primary
子 zǐ
HSK 1
offspring, child; fruit, seed of; 1st terrestrial branch
午 wǔ
HSK 1
noon; 7th terrestrial branch
线 xiàn
HSK 4
line, thread, wire; clue