Papanicolaou stain

(redirected from Papanicolaou's stain)

Pa·pa·ni·co·la·ou stain

a multichromatic stain used principally on exfoliated cytologic specimens and based on aqueous hematoxylin with multiple counterstaining dyes in 95% ethyl alcohol, giving great transparency and delicacy of detail; important in cancer screening, especially of gynecologic smears.


George N., Greek-U.S. physician, anatomist, and cytologist, 1883-1962.
Papanicolaou examination
Papanicolaou smear - Synonym(s): Pap smear
Papanicolaou smear test - Synonym(s): Pap test
Papanicolaou stain - a multichromatic stain used in cancer screening, especially of gynecologic smears.
Papanicolaou test - Synonym(s): Pap test
Pap smear - vaginal or cervical cells obtained for cytological study. Synonym(s): Papanicolaou smear
Pap test - examination of cells stained with Papanicolaou stain. Synonym(s): Papanicolaou smear test; Papanicolaou test
References in periodicals archive ?
The smears were made from each aspirate: air-dried smears were stained with May-Grunwald Giemsa (MGG), Ziehl-Neelsen (ZN) stain for acid-fast bacilli (AFB), and wet-fixed smears were stained with hematoxylin and eosin and Papanicolaou's stain.
Lymph node aspirates were stained routinely with Haematoxylin and Eosin (H&E), Papanicolaou's stain (PAP), Giemsa and Ziehl and Neelsen (ZN) stain.
After world-war II, many began using the Papanicolaou's stain on smears of effusion fluids.