Adjective

(en adjective)

Relating to the basic, essential or fundamental part of something.

Relating to an elementary school.

(physics) Relating to a subatomic particle.

* {{quote-magazine, date=2012-03

, author=(Jeremy Bernstein) , title=A Palette of Particles , volume=100, issue=2, page=146 , magazine=(American Scientist) citation , passage=The physics of elementary particles in the 20th century was distinguished by the observation of particles whose existence had been predicted by theorists sometimes decades earlier.}}

(archaic) Sublunary; not celestial; belonging to the sublunary sphere, to which the four classical elements (earth, air, fire and water) were confined; composed of or pertaining to these four elements.

Adjective

(-)

(chiefly, of living things) Born or engendered in, native to a land or region, especially before an intrusion.

* 1862 , , "Wild Apples: The History of the Apple Tree":

Not only the Indian, but many indigenous insects, birds, and quadrupeds, welcomed the apple-tree to these shores.

Innate, inborn.

* 1852 , , Uncle Tom's Cabin , ch. 18:

She was a native and essential cook, as much as Aunt Chloe,—cooking being an indigenous talent of the African race.

* 1883 , , "Stephen Archer" in Stephen Archer and Other Tales :

He had all the tricks of a newspaper boy indigenous in him.