cross-staff
Word Rarity
Uncommon
Frequency: 4.74 in modern English
18
Scrabble Score
10
Letters
2
Syllables
7
Unique Chars
Meaning
noun
An early instrument, consisting of a wooden rod with a sliding crosspiece, used for measuring the altitude of a star or for surveying.
Example Sentences
- "The cross-staff is a very simple instrument, a calibrated shaft along which a bar slides."