Tra từ surveyor's level - Từ điển WordNet v3.1

Từ điển WordNet v3.1 - WordNet Dictionary

surveyor's level

noun

surveying instrument consisting basically of a small telescope with an attached spirit level rotating around a vertical axis;
for measuring relative heights of land
• Hypernyms:
surveying instrument, surveyor's instrument
• Hyponyms:
Abney level, Dumpy level
• Part Meronyms:
level, spirit level