- Source: Spine with fluid (hieroglyph)
The use of the Spine with fluid hieroglyph is for words showing "length", as opposed to 'breadth', (Egyptian usekh-(breadth, width)-for example, the Usekh collar). Some example words for 'length' are: to be long, length, to extend, extended; and for to expand, to dilate, words like: joy, gladness, pleasure, delight.
See also
Gardiner's Sign List#F. Parts of Mammals
List of Egyptian hieroglyphs
References
Betrò, 1995. Hieroglyphics: The Writings of Ancient Egypt, Betrò, Maria Carmela, c. 1995, 1996-(English), Abbeville Press Publishers, New York, London, Paris (hardcover, ISBN 0-7892-0232-8)
Budge. An Egyptian Hieroglyphic Dictionary, E.A.Wallace Budge, (Dover Publications), c 1978, (c 1920), Dover edition, 1978. (In two volumes) (softcover, ISBN 0-486-23615-3)