Definition of sinistrad in English:

sinistrad

Pronunciation /ˈsɪnɪstrad/

adverb

Anatomy Zoology
  • To or towards the left side; to the left of (a line, plane, etc.). Contrasted with "dextrad [adjective]".

adjective

Anatomy Zoology
  • Directed or moving towards the left. Contrasted with "dextrad [adjective]".

Origin

Early 19th century; earliest use found in John Barclay. From classical Latin sinistra left hand, use as noun (short for manus sinistra left hand) of feminine of sinister sinister + -ad.