primordium

American  

[prahy-mawr-dee-uhm] / praɪˈmɔr di əm /

noun

Embryology.

plural

primordia

1. the first recognizable, histologically differentiated stage in the development of an organ.

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primordium British  

/ praɪˈmɔːdɪəm /

noun

1. biology an organ or part in the earliest stage of development

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Etymology

Origin of primordium

1665–75; < Latin prīmōrdium, in plural: beginnings, elementary stage, equivalent to prīm ( us ) first ( prime ) + ōrd ( īrī ) to begin + -ium -ium; exordium

Example Sentences

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

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

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

Sequetur l, quae validum nescio quid partem palati qua primordium dentibus superis est lingua trudente, diducto ore personabit.

From The Roman Pronunciation of Latin Why we use it and how to use it by Lord, Frances Ellen

Related Words

• commencement