heavy-metal star
heavy-metal star
[′hev·ē ¦med·əl ′stär] (astronomy)
A member of a class of peculiar giants that includes the barium stars and S stars, characterized by unusually strong lines of heavy metals, including barium and zirconium.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.