bolt uprightadverb
uk/ˌbəʊlt ˈʌp.raɪt/us/ˌboʊlt ˈʌp.raɪt/vertical and very straight:
Suddenly she sat bolt upright as if something had startled her.
Thesaurus: synonyms and related words
Geometry: describing angles, lines & orientations
- angle of incidence
- antinode
- asymptote
- asymptotic
- axial
- corresponding angle
- erect
- horizontal
- oblique
- parallel
- plumb
- prominent
- reflection
- right angle
- secant
- slant
- supplementary angle
- tangent
- tangential
- transversal
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