Available Definitions:
1) a. - Bent in different directions; wreathed; twisted; winding; as, a tortuous train; a tortuous train; a tortuous leaf or corolla.
2) a. - Fig.: Deviating from rectitude; indirect; erroneous; deceitful.
3) a. - Injurious: tortious.
4) a. - Oblique; -- applied to the six signs of the zodiac (from Capricorn to Gemini) which ascend most rapidly and obliquely.