Lean

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lean

1. (of a mixture of fuel and air) containing insufficient fuel and too much air
2. (of concrete) made with a small amount of cement

Lean

Sir David. 1908--91, English film director. His films include In Which We Serve (1942), Blithe Spirit (1945), Brief Encounter (1946), Great Expectations (1946), Oliver Twist (1948), The Bridge on the River Kwai (1957), Lawrence of Arabia (1962), Dr Zhivago (1965), and A Passage to India (1984)

lean

[lēn]
(materials)
Of concrete or mortar, containing little or insufficient cement.
Of clay, deficient in plasticity.
Of coal, having little or no volatile matter.
Of lime, containing impurities.
Of fuel mixture, expecially for internal combustion engines, being low in combustible component.
Of ore, being low-grade.

Lean

An experimental language from the University of Nijmegen and University of East Anglia, based on graph rewriting and useful as an intermediate language. Lean is descended from Dactl0.

Clean is a subset of Lean.

["Towards an Intermediate Language Based on Graph Rewriting", H.P. Barendregt et al in PARLE: Parallel Architectures and Languages Europe, G. Goos ed, LNCS 259, Springer 1987, pp.159-175].
References in periodicals archive ?
Jewel, who springs out "like a flat figure cut leanly from tin against an abrupt and soundless explosion" (218), enters the tableau of this Whistler painting more fully as he fights with Gillespie "like two figures in a Greek frieze, isolated out of all reality by the red glare" (221).
Successful homebuilders succeed by operating leanly and efficiently, sharing accurate, up-to-date information about projects and processes with builders and purchasing, sales, and finance departments.
Control in today's leanly staffed program and acquisition organizations requires balance and judgment.
This is a book of such words, as close to Latin as English can come, so tightly and leanly written that it could almost be read as a book of epigrams.
As Figure 5 shows, the post-census redistrictings helped make many districts comfortably but leanly Republican and many other districts landslide Democratic.
Operating leanly often requires moving manufacturing processes from functional divisions of work--where different departments stamp, mold, drill, paint and so on--to work groups or cells that together produce similar products.
This earlier version of the opera is a more starkly and leanly composed work that puts a keener spotlight on the individual characters.
The diminutive Chataway took the lead halfway through the third lap, with the far taller Bannister looming leanly behind him.
A leanly muscled man with deep-set eyes, Mwine moves with the rocking gait of someone who wants desperately to run somewhere but can't find the door.
Very simply, as force structure is secondary for this concept, the NRCC's heart should be a leanly staffed headquarters element capable of rapid augmentation by pre-selected staff personnel to command and control up to a tailorable corps-sized element for exercises and deployments.
Radler -- the top Hollinger executive and Sun-Times publisher who ran the papers until resigning last week -- the Chicago cluster papers are already operating very leanly.
This is often difficult when a company is staffed leanly, but is of vital importance.