PROTUBERATION Antonyms

• a shape that curves or bends inward

• the property possessed by a concave shape

• a bowl-shaped geological formation at the top of a volcano

• a faint constellation in the Southern Hemisphere near Hydra and Corvus

• a bowl-shaped depression formed by the impact of a meteorite or bomb

• a mental state characterized by a pessimistic sense of inadequacy and a despondent lack of activity

• a period during the 1930s when there was a worldwide economic depression and mass unemployment

• a long-term economic state characterized by unemployment and low prices and low levels of trade and investment

• a sunken or depressed geological formation

• sad feelings of gloom and inadequacy

• an air mass of lower pressure; often brings precipitation

• a state of depression and anhedonia so severe as to require clinical intervention

• a concavity in a surface produced by pressing

• angular distance below the horizon (especially of a celestial object)

• pushing down

• a depression in an otherwise level surface

• (physics) the angle that a magnetic needle makes with the plane of the horizon

• a thief who steals from the pockets or purses of others in public places

• tasty mixture or liquid into which bite-sized foods are dipped

• a brief immersion

• a sudden sharp decrease in some quantity

• a candle that is made by repeated dipping in a pool of wax or tallow

• a brief swim in water

• a gymnastic exercise on the parallel bars in which the body is lowered and raised by bending and straightening the arms

• immerse briefly into a liquid so as to wet, coat, or saturate

• dip into a liquid while eating

• go down momentarily

• stain an object by immersing it in a liquid

• take a small amount from

• switch (a car's headlights) from a higher to a lower beam

• lower briefly

• appear to move downward

• slope downwards

• dip into a liquid

• place (candle wicks) into hot, liquid wax

• immerse in a disinfectant solution

• plunge (one's hand or a receptacle) into a container

• scoop up by plunging one's hand or a ladle below the surface

• the act of digging

• the site of an archeological exploration

• a hole in the ground made by excavating

• the act of extracting ores or coal etc from the earth

• not solid; having a space or gap or cavity

• a cavity or space in something

• a small valley between mountains

• a depression hollowed out of solid matter

• as if echoing in a hollow space

• devoid of significance or force

• lacking in substance or character

• remove the inner part or the core of

• remove the interior of

• a concave cut into a surface or edge (as in a coastline)

• the formation of small pits in a surface as a consequence of corrosion

• the space left between the margin and the start of an indented line

• the act of cutting into an edge with toothlike notches or angular incisions

• a disavowal or taking back of a previous assertion

• the act of pulling or holding or drawing a part back

• plumbing fixture consisting of a water basin fixed to a wall or floor and having a drainpipe

• (technology) a process that acts to absorb or remove energy or a substance from a system

• a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof

• a covered cistern; waste water and sewage flow into it

• fall or descend to a lower place or level

• cause to sink

• pass into a specified state or condition; sink into

• go under

• descend into or as if into some soft substance or place

• appear to move downward

• fall heavily or suddenly; decline markedly

• fall or sink heavily

• embed deeply