Pheromones. Synomones . Allelochemicals . Allomones . Ectohormones . Kairomones . Semiochemicals . Chemical substances, excreted by an organism into the environment, that elicit behavioral or physiological responses from other organisms of the same species. Perception of these chemical signals may be olfactory or by contact. . 1.00
Prostate-Specific Antigen. Prostate Specific Antigen . Semenogelase . Seminin . Kallikrein, hK3 . gamma Seminoprotein . gamma-Seminoprotein . hK3 Kallikrein . Kallikrein hK3 . A glycoprotein that is a kallikrein-like serine proteinase and an esterase, produced by epithelial cells of both normal and malignant prostate tissue. It is an important marker for the diagnosis of prostate cancer. . 0.56
Seminoma. Seminomas . A radiosensitive, malignant neoplasm of the testis, thought to be derived from primordial germ cells of the sexually undifferentiated embryonic gonad. There are three variants: classical (typical), the most common type; anaplastic; and spermatocytic. The classical seminoma is composed of fairly well differentiated sheets or cords of uniform polygonal or round cells (seminoma cells), each cell having abundant clear cytoplasm, distinct cell membranes, a centrally placed round nucleus, and one or more nucleoli. In the female, a grossly and histologically identical neoplasm, known as dysgerminoma, occurs. (Dorland, 27th ed) . 0.53
Chemical Compounds. Chemical Agents . Chemicals and Drugs . Chemical Products and Drugs . Chemical Products and Medicines . Chemical Products . Chemical Substances . Chemicals . 0.52
Metalloids. Intermediate Metals . Semi-Metals . Metals, Intermediate . Semi Metals . A class of nonmetals such as arsenic that have some of the chemical properties of a metal. . 0.51
Semen. Plasma, Seminal . Seminal Plasma . The thick, yellowish-white, viscid fluid secretion of male reproductive organs discharged upon ejaculation. In addition to reproductive organ secretions, it contains SPERMATOZOA and their nutrient plasma. . 0.50
Semiconductors. Semiconductor . Materials that have a limited and usually variable electrical conductivity. They are particularly useful for the production of solid-state electronic devices. . 0.49
