Seif, a long, narrow sand dune or chain of dunes, generally oriented in a direction parallel to the prevailing wind or in a direction resulting from two or more winds blowing at acute angles to …

The meaning of SEIF is a long narrow sand dune or chain of dunes extending in a direction parallel to that of the wind responsible for its construction.

Founded in 2011 by Prof. Mariana Christen Jakob, SEIF has a longstanding history as an impact venture accelerator with a focus on Switzerland and Europe.

SEIF definition: an immense , long, curving, ridgelike sand dune , as of the Sahara | Meaning, pronunciation, translations and examples in American English

seif dune or seif n (Physical Geography) (in deserts, esp the Sahara) a long ridge of blown sand, often several miles long [seif, from Arabic: sword, from the shape of the dune]

Saif, Seif, Sayf or Seife (Arabic: سيف, Amharic: ሰይፍ) is a word in the Semitic languages meaning ' sword ', and as a name, 'fighter' or 'protector [of something]'.

Nov 24, 2025 · From Arabic سَيْف (sayf, “sword”). Doublet of xiphos. Such seifs have a somewhat zig-zag form instead of a fairly straight line. On the top of seifs small transverse dunelets are …

SEIF definition: a long narrow sand dune parallel to the prevailing wind direction. See examples of seif used in a sentence.

seif in American English (seɪf ; saɪf ) noun an immense, long, curving, ridgelike sand dune, as of the Sahara

The Maryland Energy Administration (MEA) manages the Strategic Energy Investment Fund (SEIF) and explains each year how the money was put into action. SEIF money makes …