Ah yes, you mentioned our notorious baldness, I can offer no definite explanation.

Weston had a definite explanation that covered the problem.

A definite explanation of this has not been found in historical sources.

Therefore, there is no definite explanation for their movement.

There is no definite explanation for the origin of the name.

Returning to the surface, Kirk and Spock are given no definite explanation of the key change.

What caused the pipeline to burst is not known, and a definite explanation may be weeks away.

A definite explanation has not been found.

There has been no definite explanation for these wounds and none of the testimonies provide an explanation.

A definite physiological explanation or reason for homosexual activity in animal species has not been agreed upon by researchers in the field.