西格马

Traditional form:

西格馬

Pinyin (reading):

xīgémǎ

Definitions:

• sigma (Greek letter Σσ)

Characters:

• 西 - west, western, westward
• 格 - form, pattern, standard
• 马 - horse; surname

Traditional characters:

• 西 - west, western, westward
• 格 - form, pattern, standard
• 馬 - horse; surname