| 释义 |
conchoidalenUK
con·choi·dal C0547600 (kŏng-koid′l)adj. Of, relating to, or being a surface characterized by smooth, shell-like convexities and concavities, as on fractured obsidian.
[From Greek konkhoeidēs, mussellike : konkho-, concho- + -oeidēs, -oid.]
con·choi′dal·ly adv.conchoidal (kɒŋˈkɔɪdəl) adj1. (Geological Science) (of the fracture of minerals and rocks) having smooth shell-shaped convex and concave surfaces2. (Geological Science) (of minerals and rocks, such as flint) having such a fracture conˈchoidally advcon•choi•dal (kɒŋˈkɔɪd l)
adj. denoting a fracture shape whose surface resembles the inside of a clamshell, characteristic of certain minerals. [1660–70] con•choi′dal•ly, adv. conchoidalenUK
conchoidal[käŋ′kȯid·əl] (geology) Having a smoothly curved surface; used especially to describe the fracture surface of a mineral or rock. conchoidalenUK
con·choi·dal (kon-koy'dăl), Shaped like a shell; having alternate convexities and concavities on the surface. [concha + G. eidos, appearance] conchoidal (kŏng-koy′dăl) [″ + eidos, form, shape] Shell-shaped.con·choi·dal (kŏn-koydăl) Shaped like a shell; having alternate convexities and concavities on the surface. [concha + G. eidos, appearance] |