1. Pertaining to or containing or consisting of semen
   "seminal fluid" 
2. Containing seeds of later development
   "seminal ideas of one discipline can influence the growth of another"
   - germinal, originative

See also: original, semen

• ogdoad
• ogee
• ogee arch
• ogham
• ogive
• Oglala
• ogle
• ogler
• ogre
• ogreish
• ogress
• ogrish
• oh
• oh boy
• oh dear
• Ohio
• Ohio buckeye
• Ohio goldenrod
• Ohio River
• Ohio State University
• Ohioan
• ohm
• Ohm's law
• ohmage
• ohmic