parturiunt montes, nascetur ridiculus mus
Latin quotation from Horace
par·tu·ri·unt mon·tes, nas·ce·tur ri·di·cu·lus mus pär-ˈtu̇r-ē-ˌu̇nt-ˈmȯn-ˌtās näs-ˈkā-ˌtu̇r-ri-ˌdi-ku̇-lu̇s-ˈmüs 
: the mountains are in labor, (and) an absurd mouse will be born
- double pneumonia
- double point
- Double Ponceau R
- double postal card
- double predestination
- double prime
- double procession
- double quartet
- double quatrefoil
- double raise
- double reed
- double refraction
- double reverse
- double rhyme
- double rhythm
- double rifle
- double root
- double rose
- double round
- double rum
- double salt
- double scull
- double seamer
- double series
- double sharp