Last Updated：2025/11/19

(botany) A seed coat. / (marine biology) The external calciferous shell, or endoskeleton, of an echinoderm; the test.

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testa

Source Word

testa

Noun

(botany) A seed coat. / (marine biology) The external calciferous shell, or endoskeleton, of an echinoderm; the test.

Japanese Meaning

（植物学）種子の被膜 / （海洋生物学）棘皮動物の外部カルシウム質の殻、または内骨格

The botanist carefully examined the testa under the microscope to determine its thickness.

植物学者は顕微鏡で種皮を注意深く観察して、その厚さを調べた。

Sense（1）

(botany) A seed coat.

The testa develops from the tissue, the integument, originally surrounding the ovule.

Sense（2）

(marine biology) The external calciferous shell, or endoskeleton, of an echinoderm; the test.

testas

（ plural ）

testae

（ plural ）

testæ

（ plural ）