Definition of diastereomer. : a stereoisomer of a compound having two or more chiral centers that is not a mirror image of another stereoisomer of the same compound â compare enantiomer.
Most perennial weeds such as Johnsongrass. are also suppressed although vigorous plants or heavy in-. festations may lift plastic. Perennial sedges, and to a lesser. extent, grasses can puncture sheet mulches as the weeds. emerge from the soil, resulting in inadequate control.
Polymer clay is a type of hardenable modeling clay based on the polymer polyvinyl chloride (PVC). home pasta-making machine is a popular multi-purpose tool for polymer clay artists. It is used to create sheets of uniform thickness, to mix colors or created variegated sheets, and to condition (soften) the clay.