a white or slightly colored zeolite mineral, Na(AlSi 2 O 6)⋅H 2 O, generally found in crystalline form.
a white, grey, or colourless zeolite mineral consisting of hydrated sodium aluminium silicate in cubic crystalline form. Formula: NaAlSi2O6.H2O
- Anal column
anal column anal column n. Any of the vertical ridges in the mucous membrane of the upper half of the anal canal. Also called rectal column.
- Anal duct
anal duct anal duct n. One of the short ducts lined with columnar epithelium that extend from the anal valves to the anal sinus.
- Anal erotic
noun a person who experiences sexual gratification of the anal area
- Anal fin
the median, unpaired fin on the ventral margin between the anus and the caudal fin in fishes. Historical Examples anal fin resembling the second dorsal, greyish, with the margin dull-purple. Zoological Illustrations, Volume I William Swainson noun a median ventral unpaired fin, situated between the anus and the tail fin in fishes, that helps to […]