| 单词 | theca |
| 释义 | theca [`thē·kǝ] ANATOMY The sheath of dura mater which covers the spinal cord. BOTANY 1. A moss capsule. 2. A pollen sac. HISTOLOGY The layer of stroma surrounding a Graafian follicle. INVERTEBRATE ZOOLOGY The test of a testate protozoan or a rotifer. |
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