Definition of testa in English:

testa

Syllabification: tes·ta
Pronunciation: /ˈtestə
 
/

noun (plural testae /-tē/)

Botany
  • The protective outer covering of a seed; the seed coat.
    More example sentences
    • The outer testae were removed and seeds placed in the light on filter paper soaked with sterile distilled water.
    • Sufficient moisture must be present to penetrate the testa or seed coat, but not so much that the seed rots or that the oxygen level in the soil is reduced.
    • Wheat grains consist of the seed coat, or testa, which surrounds the endosperm and embryo.

Origin

late 18th century: from Latin, literally 'tile, shell'.

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