The Celtic Trinity Knot, or the Triquetra, is one of the most common of the knot ilk. The term Triquetra comes from Latin, and it means three-cornered.. There are many schools of thought when discussing the Celtic trinity knot meaning.
Definition of BERYL: Aluminum beryllium silicate with chemical formula Be3Al2Si6O18. A transparent glassy mineral, which forms hexagonal prisms. Transparent varieties (white, g
Beryllium. 1  Emerald, a variety of beryl, the mineral in which beryllium was first known to be in. 2  Barite, the material in which barium was first known to be in. 3  Series of alkaline earth metals. 4  Emerald, a variety of beryl, is a naturally occurring compound of beryllium.