primordium
Americannoun
noun
Other Word Forms
Noun Inflected Forms
Etymology
Origin of primordium
1665–75; < Latin prīmōrdium, in plural: beginnings, elementary stage, equivalent to prīm ( us ) first ( see prime) + ōrd ( īrī ) to begin + -ium -ium; cf. exordium
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.
See Examples For:
These embryonic pluripotent cells within the facial primordium -- the early development form -- may be necessary for forming proper facial structures.
From Science Daily ● Apr. 11, 2024
Published online December 13 in Current Biology, the new work reveals how the cells in the primordium use a protein called RhoA to trigger forces that move the group into place in the developing embryo.
From Science Daily ● Dec. 13, 2023
"Our findings suggest that RhoA-induced actin flow on the basal sides of cells constitutes the motor that pulls the primordium forward, a scenario that likely underlies the movement of many cell groups," added Dr. Knaut.
From Science Daily ● Dec. 13, 2023
The current study found that the cells in the primordium instead activate RhoA in pulses in the front of the cells where it does two jobs.
From Science Daily ● Dec. 13, 2023
These pits are not isolated, but are connected by an ectodermal ridge, which grows in at the margin of the mantle and forms a continuous band somewhat resembling the ectodermal primordium of vertebrate teeth.
From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" by Various
Our data indicate that mature LTi cell numbers regulate the size of SLO primordia and may determine lymphoid organ size in adulthood.
From Nature ● Apr. 4, 2014
Bach was able to do this, and what emerged in the current were primordia in music.
From "The Lives of a Cell" by Lewis Thomas
The particles of this "fire mist," as it is appropriately called, were the true primordia rerum,—the elements of the universe,—the principles of all the forms of inorganic matter and all organic things.
From A Theory of Creation: A Review of 'Vestiges of the Natural History of Creation' by Bowen, Francis
If the primordia of these organs are exposed to altered conditions of nutrition at a sufficiently early stage a complete substitution of one organ for another is effected.
From Darwin and Modern Science by Seward, A. C. (Albert Charles)
A minute rounded mass appears in the center of the flower, perhaps primordia of abortive stamens, but this does not develop further.
From Northern Nut Growers Association Report of the Proceedings at the 43rd Annual Meeting Rockport, Indiana, August 25, 26 and 27, 1952 by Northern Nut Growers Association
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
