leaner

1. (of a person or animal) Slim; not fleshy.
2. (of meat) Having little fat.

   lean steak cuts

3. Having little extra or little to spare; scanty; meagre.

   a lean budget

4. Having a low proportion or concentration of a desired substance or ingredient.

   A lean ore hardly worth mining.

5. Of a character which prevents the compositor from earning the usual wages; opposed to fat.

   lean copy, matter, or type

6. Efficient, economic, frugal, agile, slimmed-down; pertaining to the modern industrial principles of "lean manufacturing"

   Alcoa is now a lean and agile enterprise, after having split last year into two entities.

noun

One who leans, or inclines toward something.