Synonyms for Horizontality:

n.

flatness (noun)
evenness, Flushness, Levelness, flatness.
horizontality (noun)
planarity.

Usage examples for horizontality

  1. The succession of strata here alluded to would be consistent with the occurrence of gradual downward and upward movements of the land and bed of the sea without any disturbance of the horizontality of the several formations. – The Student's Elements of Geology by Sir Charles Lyell
  2. The almost perfect horizontality moreover, of the roads, one of which is continuous for about 20 miles from east to west, and 12 miles from north to south, shows that since the era of their formation no change has taken place in the relative levels of different parts of the district. – The Antiquity of Man by Charles Lyell
  3. The general horizontality of the Deccan trap over an area of not less than 200, 000 square miles, and the absence of volcanic hills of the usual conical form, are difficulties which have caused much discussion. – Rambles and Recollections of an Indian Official by William Sleeman