â¢ SILICA (noun). The noun SILICA has 1 sense: 1. a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechartelierite.Familiarity information: SILICA used as a noun is very rare.Dictionary entry details.ristobalite (a white mineral consisting of silica; found in volcanic rocks). lechartelierite (a mineral form of vitreous or glassy silica; formed by the melting of quartz sand (as by lightning or a meteorite)).
Besides these glands, there are many tiny glands called minor salivary glands located in your lips, inner cheek area (buccal mucosa), and extensively in other linings of your mouth and throat. Salivary glands produce the saliva used to moisten your mouth, initiate digestion, and help protect your teeth from decay.
Salivary Gland. Salivary glands include major and minor glands. Major salivary glands include parotid glands that are located in front and below the ears, the submandibular glands that are under the lower jaw on each side of the neck, and the sublingual glands that are under the tongue and the floor of mouth area.alivary glands produce saliva. Saliva plays a role in initiating the digestion of food. Saliva also provides continuing moisture for the mouth, hence preventing dryness, constantly washing the mouth as one produces a constant flow of saliva that is being swallowed.