(from the article `rhythm`) ...the other element is rarely wholly absent, though on an instrument such as the organ, actual dynamic stress is impossible. After all, metres like ... Found on http://www.britannica.com/eb/a-z/d/56
Di·spon'dee noun [ Latin dispondeus , Greek ...; di- = di`s- twice + ... spondee.] (Gr. ... Lat. Pros.) A double spondee; a foot consisting of four long syllables. Found on http://www.encyclo.co.uk/webster/D/90