Salient: projecting; jutting out.
Saliva: the secretion of the salivary glands that moistens and begins the digestion of the food.
Salivary glands: glands that open into the mouth or at the beginning of the alimentary canal, secreting a digestive, irritant or viscid material.
Salivary receptacle: a small cavity above the opening of the salivary duct, between labium and hypopharynx.
Salivary pump: applied to the chitinous, cup-like structure at the base of the labial stylets of piercing Diptera; e.g. mosquitoes.
Saltatoria: that series of Orthoptera in which the posterior legs are formed for jumping.
Saltatorial or Saltatory: formed for jumping or leaping: a posterior femur when much enlarged and dilated.
Saltatory appendage: in Collembola = furcula; q.v.
Sanguineous -eus: red like arterial blood [crimson lake].
Sanguinolent: bloody; in color or appearance.