Variation
French-English Dictionary of Military Terms · 1918 · p. 3
Variation.—Variation séculaire. Yearly alterations of déclinaison (q.v.).—Variation diurnale. Daily variation of the compa . (Nofe—the variation of the compa , as commonly understood in English, is déclinaison). [p.603]
Readham'da tam maddeyi gor →