Plane is said to be horizontal at a given point if it is perpendicular to the gradient of the gravity field at that point— in other words, if apparent gravity makes a plumb bob hang perpendicular to the plane at that point.
| Id | Concept in source | Conceptlist |
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NoRaRe offers information about specific concept and word properties published along with studies from linguistics and psychology.
The corresponding entry in NoRaRe is linked to 152 variables from 23 datasets.
Concepticon