present participle of defertilize

A surname. / A city in San Mateo County, California, United States. / A city in Osage County, Kansas.

An instrument for measuring the head. / A device for positioning the head, and holding it steady, for an X-ray or surgery; a cephalostat.

(music) A soloist playing with a band or group of which he is not a regular member. / (MLE, derogatory) Somebody who is unimportant or irrelevant.