Rosicrucian (noun). one who, in the 17th century and the early part of the 18th, claimed to belong to a secret society of philosophers deeply versed in the secrets of nature, -- the alleged society having existed, it was stated, several hundred years. Rosicrucian (adj).
gorge1. 1  a narrow cleft with steep, rocky walls, especially one through which a stream runs. 2  a small canyon. 3  a gluttonous meal. 4  something that is swallowed; contents of the stomach. 5  an obstructing mass: an ice gorge. 6  the seam formed at the point where the lapel meets the collar of a jacket or coat.
The deepest known gorge in the solar system is Valles Marineris on Mars. It is known to be the deepest gorge on any rocky planet in the solar system, as we have already mapped all four of them in detail (Mercury, Venus, Earth, and Mars) and have not found anything deeper. Valles Marineris is 4,500 km (2,800 mi) long, 200 km (125 mi) wide and as deep as 7.7 km (4.8 mi).