thick lubricant
121speech — /speech/, n. 1. the faculty or power of speaking; oral communication; ability to express one s thoughts and emotions by speech sounds and gesture: Losing her speech made her feel isolated from humanity. 2. the act of speaking: He expresses… …
122gasoline engine — Most widely used form of internal combustion engine, found in most automobiles and many other vehicles. Gasoline engines vary significantly in size, weight per unit of power generated, and arrangement of components. The principal type is the… …
123tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
124Mucus — A thick fluid produced by the lining of some organs of the body. * * * The clear viscid secretion of the mucous membranes, consisting of mucin, epithelial cells, leukocytes, and various inorganic salts dissolved in water. [L.] glairy m. SYN:… …
125Sebum — An oily secretion of the sebaceous gland which helps to preserve the flexibility of the hair. * * * The secretion of the sebaceous glands. [L. tallow] * * * se·bum sēb əm n fatty lubricant matter secreted by sebaceous glands of the skin * * * n.… …
126mucilage — A pharmacopeial preparation consisting of a solution in water of the mucilaginous principles of vegetable substances; used as a soothing application to the mucous membranes and in the preparation of official and extemporaneous mixtures. [L.… …
127Sperm whale — Sperm Whale[1] Size compared to an average human …
128Pipe (fluid conveyance) — For structural pipe, see Hollow structural section. For other uses, see Pipe (disambiguation). Steel pipes …
