marl - a loose and crumbling earthy deposit consisting mainly of calcite or dolomite; used as a fertilizer for soils deficient in lime

regosol - a type of soil consisting of unconsolidated material from freshly deposited alluvium or sand

residual clay, residual soil - the soil that is remaining after the soluble elements have been dissolved

surface soil, topsoil - the layer of soil on the surface

subsoil, undersoil - the layer of soil between the topsoil and bedrock

alluvial soil - a fine-grained fertile soil deposited by water flowing over flood plains or in river beds

bog soil - poorly drained soils on top of peat and under marsh or swamp vegetation

clay - a very fine-grained soil that is plastic when moist but hard when fired

clunch - hardened clay

desert soil, desertic soil - a type of soil that develops in arid climates

earth, ground - the loose soft material that makes up a large part of the land surface; "they dug into the earth outside the church"

caliche, hardpan - crust or layer of hard subsoil encrusted with calcium-carbonate occurring in arid or semiarid regions

fuller's earth - an absorbent soil resembling clay; used in fulling (shrinking and thickening) woolen cloth and as an adsorbent

gilgai soil - soil in the melon holes of Australia

gumbo, gumbo soil - any of various fine-grained silty soils that become waxy and very sticky mud when saturated with water

humus - partially decomposed organic matter; the organic component of soil

indurated clay - hardened clay

Indian red - a red soil containing ferric oxide; often used as a pigment

laterite - a red soil produced by rock decay; contains insoluble deposits of ferric and aluminum oxides

loam - a rich soil consisting of a mixture of sand and clay and decaying organic materials

loess - a fine-grained unstratified accumulation of clay and silt deposited by the wind

mould, mold - loose soil rich in organic matter

mud, clay - water soaked soil; soft wet earth

bole - a soft oily clay used as a pigment (especially a reddish brown pigment)

podsol, podsol soil, podsolic soil, podzol, podzol soil - a soil that develops in temperate to cold moist climates under coniferous or heath vegetation; an organic mat over a gray leached layer

prairie soil - a type of soil occurring under grasses in temperate climates

sand - a loose material consisting of grains of rock or coral

sedimentary clay - clay soil formed by sedimentary deposits

silt - mud or clay or small rocks deposited by a river or lake

boulder clay, till - unstratified soil deposited by a glacier; consists of sand and clay and gravel and boulders mixed together

tundra soil - a black mucky soil with a frozen subsoil that is characteristic of arctic and subarctic regions

wiesenboden - a dark meadow soil rich in organic material; developed through poor drainage in humid grassy or sedge regions

dirtiness, uncleanness - the state of being unsanitary

dirty word, vulgarism, obscenity - an offensive or indecent word or phrase

faecal matter, faeces, fecal matter, feces, ordure, BM, dejection, stool - solid excretory product evacuated from the bowels

scuttlebutt, gossip, comment - a report (often malicious) about the behavior of other people; "the divorce caused much gossip"

unimproved - not made more desirable or valuable or profitable; especially not made ready for use or marketing; "taxes on unimproved land are low"; "unimproved dirt roads"