South·down 
(southdoun′)
(southdoun′)n.
Any of a breed of small, hornless sheep of English origin, having short, dense, fine-textured wool.
[After the South Downs.]
- interspersedly
- interspersion
- interstate
- interstellar
- interstellar medium
- interstice
- interstitial
- interstitially
- intertestamental
- intertextual
- intertextuality
- intertextually
- intertexture
- intertidal
- intertidally
- intertitle
- intertribal
- intertropical
- intertropical convergence zone
- intertwine
- intertwinement
- intertwist
- interurban
- interval
- intervale