Geodesy

2 clues
Earth-measuring science
Science of earth measurement
Similar answers:
Abookertbgeorgecdinah
Adageofaquarius
Adageofreason
Advantageous
Ageof
Ageofanxiety
Ageofcapricorn
Ageofconsent
Ageofdiscovery
Ageofgold
Ageofman
Ageofreason
Ageofretirement
Ageofyouth
Ageold
Ageoldmaximum
Ageoldquestion
Ageone
Ageout
Amongthepigeons