They put their heads so closely together the steam of their breath mingled into a single plume.

A single plume would mark a lieutenant or maybe an under-lieutenant.

A single short white plume on the helmet marked him an officer, an odd choice for a messenger, albeit an officer of low rank.

They didn't touch S. speciosa, however, which has a red stem and a single plume of flowers.

The gill has a single curved plume on the left or on the outer side of the mantle cavity.

To the east, a half-mile away, a single plume of gray smoke spiraled into the blackness.

Not a single plume of smoke rose from a fire.

He undid his helmet and with a certain amount of exhausted delight saw that every single plume had been burned to a stub.

If he wears a single yellow plume, he is a treacherous enemy who must be destroyed at any cost!

A haze of dust hovered over the city and, across the river, a single plume of smoke rose to the sky.