grivation: meaning, definition, pronunciation and examples
Extremely Low / Highly SpecializedTechnical (Navigation, Cartography, Surveying)
Quick answer
What does “grivation” mean?
A term used in navigation to describe the angle between grid north (north on a map's grid) and magnetic north.
Audio
Pronunciation
Definition
Meaning and Definition
A term used in navigation to describe the angle between grid north (north on a map's grid) and magnetic north.
In technical navigation and cartography, the angular correction needed to convert a magnetic bearing to a grid bearing. It is specific to a particular location and map grid system.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Both employ the term in identical technical contexts. Pronunciations are typically influenced by regional accents.
Connotations
Purely technical and neutral in both varieties.
Frequency
Identically rare and specialized in both British and American English, used almost exclusively by professionals in navigation and geospatial fields.
Grammar
How to Use “grivation” in a Sentence
The grivation in this area is +3°A grivation of +3° must be applied.Vocabulary
Collocations
Examples
Examples of “grivation” in a Sentence
adjective
British English
- The grivation correction was negligible.
- Is the chart annotated with the grivation value?
American English
- The grivation diagram was outdated.
- You need the current grivation data for the region.
Usage
Meaning in Context
Business
Never used.
Academic
Very rarely used, only in highly specialized papers or textbooks on navigation or surveying.
Everyday
Completely unknown to the general public.
Technical
Used by pilots, mariners, cartographers, and surveyors when converting between grid and magnetic bearings.
Vocabulary
Synonyms of “grivation”
Watch out
Common Mistakes When Using “grivation”
- Misspelling as 'gravitation' or 'gravitation' due to the similar sound. Pronouncing it with a stress on the first syllable (GRI-veɪ-ʃən) instead of the standard second syllable (gri-VEYE-shən).
FAQ
Frequently Asked Questions
No. Magnetic declination is the angle between true north and magnetic north. Grivation is the angle between grid north (from the map's coordinate grid) and magnetic north. Grid north and true north often differ slightly, so the two values are related but distinct.
Primarily professionals who use detailed maps for precise navigation or surveying, such as military personnel, land surveyors, certain types of pilots, and advanced orienteers.
It is expressed in degrees (and often minutes) and can be either positive (east) or negative (west). A positive grivation means magnetic north is east of grid north.
It is typically found in the marginal information or legend of a topographic or aeronautical chart, often in a diagram showing the relationship between True North, Grid North, and Magnetic North.
A term used in navigation to describe the angle between grid north (north on a map's grid) and magnetic north.
Grivation is usually technical (navigation, cartography, surveying) in register.
Grivation: in British English it is pronounced /ɡraɪˈveɪʃ(ə)n/, and in American English it is pronounced /ɡraɪˈveɪʃən/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: GRId VARiATION -> GRI-VATION. It's the VARIATION between a map's GRId north and the compass needle.
Practice
Quiz
What does the term 'grivation' specifically refer to?