| 单词 | discoid |
| 释义 | discoid /dis"koyd/, adj. Also, discoidal. 1. having the form of a discus or disk; flat and circular. 2. Bot. (of a composite flower) consisting of a disk only, without rays. n. 3. something in the form of a disk. 4. Dentistry. an excavator with a disklike blade. [1785-95; < LL discoides < Gk diskoeidés quoit-shaped. See DISCUS, -OID] |
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