The department employed agricultural explorers to seek out economically useful plant species to import to the United States.

The Soviet Union is seen as less useful economically than Western countries.

Qualitative analysis of nutritive value of ethno-food plants and other economically useful species.

Palmyra palms are economically useful, and widely cultivated in tropical regions.

To make an economically useful reactor, betas better than 5% are needed.

Dendrology tends to focus on economically useful woody plants, their identification and horticultural or silvicultural properties.

The African elemi tree is one of several sources of the economically useful oleoresin known elemi.

In turn, with the elephants no longer economically useful, some hungry villagers have begun hunting them for meat.

They are economically useful because they share part or nearly all of the properties of fluorocarbons.

Maybe we should apply the same logic to desirable jobs, after all men work longer hours, take less career breaks and study more economically useful subjects.