a level of command, authority, or rank: After years of service, she is now in the upper echelon of city officials.
In English, echelon originally had a military sense, “military forces advancing in a steplike formation.” Around 1950, echelon acquired the originally American sense “grade or rank in any administration or profession.” Echelon comes from French echelon, originally “rung of a ladder,” from Old French eschelon, formed from the noun eschele, eschiele “ladder” (from Latin scāla) and the augmentative suffix –on (an augmentative suffix, when added to a noun, denotes increased size or intensity). Echelon entered English in the late 18th century.
… if they fall out of favor with the top echelon of the party, their business empires could come crashing down.
The film features interviews with former members of the controversial organization who describe widespread abuse and intimidation from the upper echelons of the Church’s power structure.
a small cavity in a rock or vein, often lined with crystals.
While you may have not heard of the word vug before, you have probably encountered a beautiful specimen of what this uncommon term names. In geology, vug refers to a small cavity in a rock or vein, often lined with crystals. Cavity is the key word, as vug comes from Cornish vooga “cave” (compare Cornish gogow “cave, cavity” and gwag “cave,” Welsh ogof “cave,” Latin fovea “pit”). Vug is also spelled vugg and vugh, and its adjective form is the delightful vuggy. Cornish was a Celtic language of southwest England that went extinct around 1800, but was notably revived in the 20th century. Borrowed from Cornish mining, vug entered English in the early 1800s.
And this little hole—see, this little hole? There were once quartz crystals here too but they eroded away. This little hole is called a vug.
One such quartz vein contained minute particles of free gold, in a vug.
subject to being revised, improved, or made more accurate: a corrigible theory.
It is curious that corrigible “subject to being revised, improved, or made more accurate” is much less common than its opposite, incorrigible. Corrigible ultimately comes from Medieval Latin corrigiblis, a derivative of Latin corrigere “to correct, amend, improve, rectify.” Corrigibilis does not occur in classical Latin, but incorrigibilis occurs in Seneca, the first-century a.d. Roman philosopher and man of letters. Corrigible entered English in the 15th century.
First, policy decisions demand closure, conclusiveness, and certainty. By contrast, science is by its nature cautious, contingent, and corrigible.
He cautioned against a colonizing mindset that too readily collapses the distance between one’s self and another; empathy, in Stein’s definition, is “corrigible, always something to be learned.”