The following words and phrases, unless otherwise specified, are defined as follows:

1. A "drainage section" shall mean an area, of drainable acreage, as described in articles of association which have been filed and recorded as authorized by section 15-1975.

2. "Drainable acreage" shall mean that part of an owner's swamp, bog, pond, meadow or other low or wet agricultural lands, which will be drained by a drainage system as authorized by this title 19 to increase its productivity or otherwise render it more available for agricultural purposes, or in order to benefit the public health, safety and welfare.

3. "Aggregate drainable acreage" shall mean the total drainable acreage owned by all owners who execute articles of association authorized by this title 19.

4. "Owner" shall mean a person other than a municipal or public corporation, who or which is the owner in fee of drainable acreage and who or which executes the articles of association.