Definition of tabular

i. Said of a feature having two dimensions that are much larger or longer than the third, such as a dike, or of a geomorphic feature having a flat surface, such as a plateau.
See: tabular deposit
Ref: AGI

ii. Said of the shape of a sedimentary body whose width to thickness ratio is greater than 50:1, but less than 1,000:1 (Krynine, 1948); e.g., a graywacke formation in a geosynclinal deposit.
Compare with: blanket, prism
Ref: AGI

iii. Said of a sedimentary particle whose length is 1.5 to 3 times its thickness (Krynine, 1948).
Compare with: prismatic

iv. Said of a crystal habit (or of a mineral species whose crystals typically are of such a habit) in which one dimension is markedly smaller than the other two, with a broad, flat surface, e.g. wulfenite, torbernite, and ilmenite.
Compare with platy, which usually refers to compact aggregates of crystals, whereas tabular refers to distinct individual crystals.

Ref: Schieferdecker, AGI, Nelson

v. Said of a metamorphic texture in which a large proportion of grains are tabular and have approximately parallel orientation (Hart, 1977)
Ref: AGI

Compare with: acicular, anisodesmic, equant