Essential character

(Biol.) the prominent characteristics which serve to distinguish one genus, species, etc., from another.

See also: Essential

References in classic literature ?
Now the head, the hand, and such things are substances, and it is possible to know their essential character definitely, but it does not necessarily follow that we should know that to which they are related.
Your very ideas are but the outgrowth of the conditions of your bourgeois production and bourgeois property, just as your jurisprudence is but the will of your class made into a law for all, a will, whose essential character and direction are determined by the economical conditions of existence of your class.
And yet, majestic as the voice sometimes became, there was for ever in it an essential character of plaintiveness.
We are least likely in the modifications of these organs to mistake a merely adaptive for an essential character.
Of course, in actual fact, human learning is rendered easier, though psychologically more complex, through language; but at bottom language does not alter the essential character of learning, or of the part played by instinct in promoting learning.
It had that look of one of those modern estate pubs of the 60s dropped in from a great height to serve the community on a strictly functional level with no essential character of its own.
The philosophy of Cono Sur commands it to select only the best grapes, through which the essential character of wine may be conveyed.
We want to try to nurture the film industry without losing our essential character," Yeo tells Variety, pointing to director Eric Khoo ("12 Storeys") as a prominent example of local talent.
He has the ability to seize hold of the essential character of a place (long and narrow, large and amorphous, and so on), and by exaggeration transcend its limitations.
Reaching back through more than 125 years, the College has sustained its essential character and mission while adapting to a changing world.
The essential character of the vehicle is of a very high standard and that it is prepared for the Danish climate.

Full browser ?