Definition of "seminal" [sem•i•nal]

• Of, relating to, containing, or conveying semen or seed. (adjective)
• Of, relating to, or having the power to originate; creative. (adjective)
• Highly influential in an original way; constituting or providing a basis for further development: a seminal idea in the creation of a new theory. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The duct of the seminal vesicle joins the _vas deferens_ of the same side (both functionally and embryologically the seminal vesicle is no more than a diverticulum of the vas deferens); passing on under the name of the _common seminal_ or _ejaculatory duct_, the canal opens into the prostatic portion of the urethra (the orifices of the two common seminal ducts are in the folds of mucous membrane forming the right and left lateral margins of the _prostatic utricle_ or _uterus masculinus_)."
• "This two-disc compilation is also the first to cover both the Warner Brothers years and R.E.M.'s start on I.R.S. records, which produced the "Chronic Town" EP and "Murmur," works for which the word "seminal" should have been invented."
• "Studios, and a move to Los Angeles in 1987 that landed him at Samuel Goldwyn, which he calls the seminal job of his career because it taught him about film distribution, marketing, and publicity."