anhedral
- adjective
- /ˌænˈhiːdrəl/
- Specialized
:
anhedral
- Most grains in the rock sample were anhedral, making them difficult to identify.
Examples
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Aircraft designers sometimes use anhedral wings to improve roll performance.
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The crystal was anhedral and lacked the typical flat faces.
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The mineral was described as anhedral because it lacked distinct crystal faces.
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Look at that anhedral crystal formation over there!
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The mineral was described as anhedral because it lacked distinct crystal faces.
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Most grains in the rock sample were anhedral, making them difficult to identify.
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Aircraft designers sometimes use anhedral wings to improve roll performance.
How Well-Formed
Surface Forms
Morphology
anhedral = hedral (opaque) = an + hedral
'Hedral' is not a standalone English word and its meaning is not obvious to learners, making the prefixation non-transparent.
Etymology
The word anhedral comes from the parts an- meaning 'not' and hedra meaning 'face' or 'seat' and is a root used in words about shapes. So anhedral means 'without clear faces', which fits minerals that have no flat crystal faces and also describes wings that are tilted down instead of up.
