chromomere

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun One of the serially aligned beadlike granules of concentrated chromatin that constitutes a chromosome during the early phases of cell division.

from The Century Dictionary.

• noun In cytology, one of the minute chromatin granules which go to make a chromosome: same as an id of Weismann.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun genetics Any of a group of beadlike granules of chromatin that constitutes a chromosome during cell division