It was defined scientifically by O. B. Bøggild between 1905 and 1924.

Can it be scientifically defined?

Climatology is the study of the climate, scientifically defined as weather conditions averaged over a long period of time.

Dog breeds are not scientifically defined biological classifications, but rather are groupings defined by clubs of hobbyists called breed clubs.

"Beauty is incapable of being defined scientifically or aesthetically," he wrote.

The distinction between moths and butterflies is not clearly defined scientifically.

This is not an accident but the result of substantial education, which, scientifically defined, is the subsumption of the individual.

"A number is a collection of units, and because the collection is infinite (for multiplication can continue indefinitely), the Indians ingeniously enclosed this infinite multiplicity within certain rules and limits so that infinity could be scientifically defined; these strict rules enabled them to pin down this subtle concept."

How can they be scientifically defined?

In the case of a dam ... all properties located within a scientifically defined "watershed" and all properties lying within the floodplain of the dam are connected by how water drains from an entire watershed into a lake and how water within the lake may flood specific areas downstream.