14-Letter Words Ending: LS

• any compound obtained from petroleum or natural gas

• a four-sided polygon

• having four sides

• a long-acting barbiturate used as a sedative

• any organic substance that occurs in neural activity

• placental mammals having hooves with an odd number of toes on each foot

• as much as a tablespoon will hold

• a barbiturate (trade name Nembutal) used as a sedative and hypnotic and antispasmodic

• an agent (as heat or radiation or a chemical) that destroys microorganisms that might carry disease

• capable of destroying or inhibiting the growth of disease-causing microorganisms