achromatin

9.9

A pale area in a cell nucleus under a microscope that does not take stains

noun
/ˌeɪkroʊˈmeɪtɪn/

Specialized

: acromatina

Under the microscope, the achromatin appeared as a pale area in the cell nucleus.

Examples

In stained tissue sections, achromatin can be distinguished from darker, chromatin-rich regions.
Scientists study achromatin to understand its role in genetic regulation.
The achromatin region is essential for cell function.
What is achromatin?
Under the microscope, the achromatin appeared as a pale area in the cell nucleus.
In stained tissue sections, achromatin can be distinguished from darker, chromatin-rich regions.
Scientists study achromatin to understand its role in genetic regulation.

Surface Forms

achromatin singular

achromatins plural

Morphology

achromatin = chromatin (semi-transparent) = a + chromatin

This is a standard scientific negating formation from 'chromatin', but the prefix 'a-' is less familiar to general learners and the referent is specialized.

Etymology

Achromatin comes from the Greek parts a- meaning 'not' and chroma meaning 'color', the same root you see in chromosome and chrome. So, achromatin is the part of a cell nucleus that does not take color when stained and therefore looks pale under the microscope.