The term noosphere, which up until now has been just a beautiful figure of speech, a poetic metaphor, will turn into a physical reality.

He then goes on to discuss various poetic metaphors known as kennings.

The chief criticisms are that he is deaf to poetic metaphor and unable to scan correctly.

On several accounts he offered a poetic metaphor for this process, comparing it with collecting shells while walking along a beach.

Here Ashton's genius soars to the heights of poetic metaphor.

More than cool reason: a field guide to poetic metaphor.

"September Song" is based on a familiar poetic metaphor that compares a year to a person's life span from birth to death.

I guess I understood how this might be sort of a poetic metaphor for this case and all that.

They do not exhibit the semantic indeterminacy characteristic of poetic metaphors.

He occasionally comes up with poetic metaphors for the current situation, again, just as Estragon does.