(transitive, military) To form troops into an echelon.

(linear algebra) Of a matrix: having undergone Gaussian elimination with the result that the leading coefficient or pivot (that is, the first nonzero number from the left) of a nonzero row is to the right of the pivot of the row above it, giving rise to a stepped appearance in the matrix.

An expert in economics, especially one who studies economic data and extracts higher-level information or proposes theories. / One concerned with political economy.

(parapsychology) A visible substance believed to emanate from the body of a spiritualistic medium during communication with the dead.

(economics) A branch of economics that focuses on the supply side of the economy and on tax reductions.

(astronomy) a solar eclipse in which the thin outer disk of the sun can be seen as a ring around the moon

Relating to ecology, the interrelationships of organisms and their environment. / Not harmful to the environment.

Of or pertaining to the church; ecclesiastical.

A cleric.

A pastoral poem, often in the form of a shepherd's monologue or a dialogue between shepherds.