Radical 187
Radical 187 or radical horse meaning "horse" is one of the 8 Kangxi radicals composed of 10 strokes.
In the Kangxi Dictionary, there are 472 characters to be found under this radical.
马, the simplified form of 馬, is the 58th indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China, while the traditional form 馬 is listed as its associated indexing component. The simplified form 马 is derived from the cursive script form of 馬.