At nine o'clock and Sinistral

Sinistral and at nine o'clock are semantically related. In some cases you can use "Sinistral" instead an adjective phrase "At nine o'clock".

Sinistral adjective - Of or on the left.

At nine o'clock and sinistral are semantically related. You can use "At nine o'clock" instead an adjective "Sinistral".