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seminal

American  
[sem-uh-nl] / ˈsɛm ə nl /

adjective

  1. pertaining to, containing, or consisting of semen.

  2. Botany. of or relating to seed.

  3. having possibilities of future development.

  4. highly original and influencing the development of future events.

    a seminal artist; seminal ideas.

    Synonyms:
    innovative, formative, primary, germinal

seminal British  
/ ˈsɛmɪnəl /

adjective

  1. potentially capable of development

  2. highly original, influential, and important

  3. rudimentary or unformed

  4. of or relating to semen

    seminal fluid

  5. biology of or relating to seed

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of seminal

1350–1400; Middle English < Latin sēminālis, equivalent to sēmin- (stem of sēmen ) seed, semen + -ālis -al 1

Explanation

Call something seminal when it's so original, so groundbreaking and awesome that it will influence everything that comes after it. Picasso produced more than a few seminal works of art, for example. Technically, seminal means something related to semen or seeds. But these days people more often use the word to describe something that plants the seed for creative growth. An innovative piece of music or literature, a fresh new idea, or an invention that changes everything could each be called seminal. Synonyms include critical, fundamental, original, and primary.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Seminal moments in the history of the U.S. workplace included the fight for a 10-hour workday, the creation of OSHA, the rise of gig work and these other key developments.

From The Wall Street Journal • Dec. 3, 2025

Seminal roots give the seedlings an initial advantage under optimal conditions: They enable them to absorb large amounts of nutrients from the soil very rapidly.

From Science Daily • May 22, 2024

Seminal work at Livingstone’s lab has shown that experience and learning are essential for the development of the FFA.

From Scientific American • Nov. 15, 2021

Seminal soul and funk composer Sly Stone has been awarded $5 million in royalties and damages by a Los Angeles County court.

From Los Angeles Times • Jan. 28, 2015

It exists in others from birth, and is in no way connected with Seminal Disease.

From Manhood Perfectly Restored Prof. Jean Civiale's Soluble Urethral Crayons as a Quick, Painless, and Certain Cure for Impotence, Etc. by Civiale Remedial Agency