primordium
noun
pri·mor·di·um
prī-ˈmȯr-dē-əm 
plural primordia
prī-ˈmȯr-dē-ə
: the rudiment or commencement of a part or organ
Examples of primordium in a Sentence
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The worm has organs called gonad primordia on the underside of its posterior end.
—
Elizabeth Rayne, Ars Technica, 8 Dec. 2023
Strange figures can emerge from the archival primordium—figures such as Loab.
—Stephen Marche, The Atlantic, 27 Sep. 2022
Sun spells out a half-century of empirical research, along with the roles of complex genetic signals, hormones, chromosomes and a small group of cells called the bipotential primordium.
—Heidi Stevens, chicagotribune.com, 26 Feb. 2021
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Elizabeth Rayne, Ars Technica, 8 Dec. 2023
Strange figures can emerge from the archival primordium—figures such as Loab.
—Stephen Marche, The Atlantic, 27 Sep. 2022
Sun spells out a half-century of empirical research, along with the roles of complex genetic signals, hormones, chromosomes and a small group of cells called the bipotential primordium.
—Heidi Stevens, chicagotribune.com, 26 Feb. 2021
Cite this Entry
“Primordium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/primordium. Accessed 3 Nov. 2025.
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