The Euclid's Sextant is a measure in Final Fantasy XII. Euclid's Sextant has a half chance of inflicting Bubble on-hit in the original version. In the Zodiac versions the chance is increased and its attacks deal Holy damage.
The Euclid's Sextant is special among measures as when the weapon successfully inflicts Bubble on its target, no damage is dealt to the recipient.
In the original version, its license costs 50 LP. In the Zodiac versions, its license costs 100 LP and it can be used by the Machinist.
Euclid was a Greek mathematician, often referred to as the "father of geometry". He was active in Alexandria during the reign of Ptolemy I (323–283 BCE). His Elements is one of the most influential works in the history of mathematics.
A sextant is a doubly reflecting navigation instrument that measures the angular distance between two visible objects. Its primary use is to measure the angle between an astronomical object and the horizon for celestial navigation.