geode

名词 geode:

1. (mineralogy) a hollow rock or nodule with the cavity usually lined with crystals

ge.ode

n.（名词）
A hollow, usually spheroidal rock with crystals lining the inside wall.
晶球：带有排列在洞壁的晶体的球状空岩石

来源：
French géode
法语 géode
from Latin geôdôs [a precious stone]
源自 拉丁语 geôdôs [贵重的石头]
from Greek [earthlike]
源自 希腊语 [象土一样的]
gô [earth]
gô [地球]
-ôdôs, -oeidôs [-oid]
-ôdôs, -oeidôs […状的]