sinistral

Of or facing the left side.

Left-handed.

Relating to or being a gastropod shell that has its aperture to the left when facing the observer with the apex upward.

Of or pertaining to the left side; situated on the left hand; not dextral; sinister; sinistrous.

In conchology, reversed from the usual, right, or dextral curve, as the whorls of a spiral shell; whorled toward the left; sinistrorse; heterostrophous.

In ichthyology, having both eyes on the left side of the head, as certain flatfishes.

Sinister; wrong.

Of or pertaining to the left, inclining to the left; sinistrous; — opposed to dextral.

Having the whorls of the spire revolving or rising to the left; reversed; — said of certain spiral shells.

Of, facing, or on the left side.