Crossword puzzle clue "longtime navigation method"

Here are the possible solutions for longtime navigation method clue

Answer
Clue
Relevancy
deadreckoning
Clue
Longtime navigation method
hydroponics
Clue
Method of growing plants that... look, it's for weed, all right? You use this method to grow weed
Definition
the practice of growing plants in a chemical solution without soil
adobereader
Clue
It has a Page Navigation menu option
amerigo
Clue
Famed first name in navigation
astrolabe
Clue
Navigation tool
Old navigation instrument
Definition
a compact instrument used to observe and calculate the position of celestial bodies before the invention of the sextant
astronomic
Clue
Adjective in optical navigation
Definition
related to astronomy, also ASTRONOMICAL
avionics
Clue
High-tech navigation systems
Definition
the science of aviation electronics

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