Medical Definition of An-

  • Medical Author:
    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Reviewed on 12/11/2018

An-: Prefix very much employed in medicine and all of the health sciences, indicating "not, without, or -less."

For example, the prefix "an" figures into these words: anemia (without blood), anophthalmia (no eye), anotia (no ear), anoxia (no oxygen).

The "an-" usually becomes "a-" before a consonant as, for example, in alexia (not read), aphagia (not eat), aphonia (not voice, voiceless).

The prefix "an-" comes from the Greek meaning "not."

SLIDESHOW

Health Screening Tests Every Woman Needs See Slideshow

Health Solutions From Our Sponsors

Reviewed on 12/11/2018