[nin-hahy-drin] /nɪnˈhaɪ drɪn/
a white or yellow, toxic, crystalline or powdery compound, C 9 H 4 O 3 ⋅H 2 O, that reddens when heated above 100°C, a monohydrate, soluble in water or alcohol: used primarily as a reagent to detect the presence of various amino acids.
a chemical reagent used for the detection and analysis of primary amines, esp amino acids, with which it forms a derivative with an intense purple colour
ninhydrin nin·hy·drin (nĭn-hī’drĭn)
A poisonous crystalline oxidizing agent used as an analytic reagent.
- Ninhydrin reaction
ninhydrin reaction n. A test for proteins, peptones, peptides, and amino acids possessing free carboxyl and alpha-amino groups in which ninhydrin reacts with such compounds to produce a blue color.
/ˈnɪnjən/ noun 1. Saint. ?360–?432 ad, the first known apostle of Scotland; built a stone church (candida casa) at Whithorn on his native Solway; preached to the Picts. Feast day: Sept 16
[nee-nib] /ˈni nɪb/ noun, Obsolete. 1. .
[nee-nee-gee] /niˈni gi/ noun, Japanese Legend. 1. the grandson of Amaterasu and first ruler of Japan.