A type of shingle used in steep-slope roofing and generally comprised of weathering-grade asphalt, a fiber glass reinforcing mat, an adhesive strip, and mineral granules.
Compost
An organic soil amendment resulting from the decomposition of organic matter. Usual meaning for the house plant grower is a potting or seed/cutting mixture made from peat ("soil less compost") or sterilized soil ("loam compost") plus other materials such as sand, lime, and fertilizer. Compost is also a term for decomposed organic matter such as what is left after a compost heap has degraded vegetable and animal matter. An excellent source of organic material for rebuilding and enriching soil.
Compost heap
The result and act of combining organic materials under controlled conditions so that the original raw ingredients are transformed by decay and degradation into humus (or compost).
Compost starter
Composting
The process of degrading organic material (biomass) by microorganisms in aerobic conditions.
Composting toilet
A self-contained toilet that use the process of aerobic decomposition (composting) to break down feces into humus and odorless gases.
Compound circuit
Electrical circuit with both parallel and series segments.
Compound flower
A flower made up of many florets, e.g Chrysanthemum.
Compound interest
The interest paid on the principal amount plus interest which has accrued and been added to the total.
Compound leaf
A leaf made up or two or more leaflets attached to the leaf stalk; e.g Schefflera.
