Meanings of defined shape in English

A strange, ill- defined shape emerged over the horizon of the nearest hill.

Monodisperse inorganic SPs exhibit unique physiochemical properties due to their well- defined shape and distinctive topological structure.

Dom Paulo arose and moved to the front of the dais to stare at the faintly defined shape in the shadows.

AgNOR positivity increased with the loss of cellular differentiation; a progressive increase in size and a poorly defined shape were evident in poorly differentiated carcinomas.

Three matches into the third Six Nations campaign under his stewardship, there is a more defined shape and a better understanding between coach and players.