seminal

adjective

sem·​i·​nal ˈse-mə-nᵊl 

1

: of, relating to, or consisting of seed or semen

seminal discharge

2

: containing or contributing the seeds of later development : creative, original

a seminal book

seminally

ˈse-mə-nᵊl-ē 

adverb

Examples of seminal in a Sentence

Kandel was awarded the Nobel Prize in medicine in 2000 for his seminal observation that it was in the action of the synapses between cells that memory existed, not in the cells themselves, and that a molecule called cyclic AMP was what allowed cells to retain memory over the long term. —Michael Greenberg, New York Review of Books, 4 Dec. 2008

Writer Susan Sontag died December 28 at age 71 after a long battle with cancer. She left behind an impressive body of fiction and criticism, including her seminal 1960s essays "Notes on Camp" and "Against Interpretation." —Allan Gurganus, Advocate, 1 Feb. 2005

I wonder if the curators who organized "Matisse Picasso" ever asked themselves why it was that Alfred H. Barr Jr., the first director of the Museum of Modern Art and the guiding spirit behind the museum's seminal exhibitions of both Picasso and Matisse, never mounted a show like the one that has now arrived at MoMA QNS. Such an exhibition might seem to be logical, almost inevitable for the Museum of Modern Art. —Jed Perl, New Republic, 3 Mar. 2003

Recent Examples on the Web

The concept of dogfighting amongst the stars has been around far longer than video games set in space, but it's been a linchpin of some of the most seminal games ever developed. —Alan Bradley, Space.com, 31 Jan. 2026

In the years that followed the success of The Roots’ seminal record, the Philadelphia native has built a career spanning chart-topping singles, film and television roles, and a lasting imprint on hip-hop culture. —Okla Jones, Essence, 30 Jan. 2026

Sly and Robbie released several albums of their own, too, including 1987’s seminal Rhythm Killers. —Jon Blistein, Rolling Stone, 26 Jan. 2026

The star-studded adaptation of Homer’s seminal work boasts Matt Damon as the eponymous hero Odysseus, with co-stars Zendaya, Anne Hathaway, Lupita Nyong’o, Robert Pattinson, Benny Safdie, Charlize Theron, Himesh Patel, Elliott Page, Bill Irwin and Samantha Morton rounding out the cast. —Natalie Oganesyan, Deadline, 25 Jan. 2026

Word History

Etymology

Middle English, from Latin seminalis, from semin-, semen seed — more at semen

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing seminal

• seminal duct
• seminal fluid
• seminal vesicle

Rhymes for seminal

• trigeminal

Medical Definition

seminal

adjective

sem·​i·​nal ˈsem-ən-ᵊl 

: of, relating to, or consisting of seed or semen

seminal discharge