valley. (building construction). An inside angle formed where two sloping sides intersect. (geography). A generally broad area of flat, low-lying land bordered by higher ground.
In ordinary usage, price is the quantity of payment or compensation given by one party to another in return for goods or services.
adj. 1. (Economics) of or relating to an economy, economics, or finance: economic development; economic theories. 2. (Commerce) Brit capable of being produced, operated, etc, for profit; profitable: the firm is barely economic. 3. (Economics) concerning or affecting material resources or welfare: economic pests.