eosin

/'i:ousin/

Thân thiện

A scientist applies eosin to a tissue sample on a microscope slide.

Definition

1. Noun:
   • A red fluorescent dye produced by the reaction of bromine with fluorescein. It is used in cosmetics and as a biological stain to study cell structures under a microscope.

Usage

• Noun: "Eosin" is a technical term used primarily in chemistry, histology (the study of tissues), and cosmetic manufacturing. It is an uncountable noun referring to the substance itself.
  • The pathologist used eosin to stain the cytoplasm of the cells pink.
  • This lipstick shade contains eosin.

Advanced Usage

• "Eosin Y": This is the most common form of eosin used in biological staining, often paired with a blue stain called hematoxylin in the "H&E stain" procedure.
  • The tissue sample was prepared with Hematoxylin and Eosin Y for examination.

Variants and Related Words

• Eosinophil (noun): A type of white blood cell that stains readily with eosin dye. This is a related but distinct biological term.
  • A high count of eosinophils can indicate an allergic reaction.

Synonyms

• Acid red 87: An alternative industrial name for eosin.
• Tetrabromofluorescein: The systematic chemical name for eosin.

Học thuật

Noun

1. a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures

Từ đồng nghĩa

• bromeosin