A large cloud of smoke, flame and debris that rises into the sky as a result of a large explosion, especially after a nuclear explosion, characterized by a long shaft rising from the ground into a much-larger or more-spread-out top, reminiscent of a mushroom in shape.

(idiomatic) Whose future is uncertain due to an anticipated threat or change in circumstance. / (idiomatic) Under suspicion; subject to critical inspection.

(astronomy) Either of two irregular galaxies that are close companions of our Milky Way galaxy.

(astronomy) A large and relatively dense cloud of cold gas and dust in interstellar space from which new stars are formed

(idiomatic) In a state of elation; very happy; blissful.

The altitude of the base of a mass of cloud; measured by a ceilometer.

plural of point cloud

plural of star cloud

(meteorology) Stratocumulus.

plural of tag cloud