Vein

The vein (from Old High German adra , Middle High German vein : Name for string-like structures such as tendons , ligaments , fascia , nerves and blood vessels), as well as collective blood vessels , called

a vessel in a blood stream, see blood vessel
in botany a special conduction path, leaf vein, surrounded by strengthening tissue

in zoology a rod-shaped or tubular thickening in the insect wing , see wing vein

a hypothetical groundwater flow, the water vein

in geology and mining a small passage (geology)

in electrical engineering a single line within a bundle in a cable , see also twin wire

an elongated cavity in the firing block of the solid fuel rocket

In wood technology, a narrow ornament made of different types of wood to liven up the surface, see inlay

The following geographic objects are called:

Ader (municipality of Timelkam) , part of the municipality of Timelkam , district of Vöcklabruck, Upper Austria
Ader Creek , a river in the US state of North Carolina
Mount Ader , mountain in northern Graham Land on the Antarctic Peninsula
Ader (Niger) , landscape in Niger and former province of the Sultanate of Aïrs

Ader or Áder is the family name of the following people:

Alfred Ader (1892–1941), Polish fencer
Bas Jan Ader (1942–1975), Dutch video and conceptual artist
Clément Ader (1841–1925), French aviation pioneer
János Áder (* 1959), Hungarian politician and president
Kurt Ader (* 1961), German sound designer, keyboardist and composer
Margus Ader (* 1977), Estonian biathlete
Robert Ader (1932–2011), American psychologist
Rose Ader (1890–1955), Austrian-Argentinian opera singer (soprano)
Viktor Ader (1910–1966), Estonian football player
Walt Ader (1913–1982), American racing driver

Core , miscellaneous:

Automobiles Ader , former French automobile manufacturer

See also:

Adair

Wiktionary: Ader - explanations of meanings, word origins, synonyms, translations