allusion / illusion Allusion is a noun that means an indirect reference: “The speech made allusions to the final report.” Illusion is a noun that means a misconception: “The policy is designed to…
(Encyclopedia) histonehistonehĭsˈtōn [key], any of a class of protein molecules found in the chromosomes of eukaryotic cells. They complex with the DNA (see nucleic acid) and pack the DNA into tight…
(Encyclopedia) geochemistry, study of the chemical changes on the earth. More specifically, it is the study of the absolute and relative abundances of chemical elements in the minerals, soils, ores,…
(Encyclopedia) millet, common name for several species of grasses cultivated mainly for cereals in the Eastern Hemisphere and for forage and hay in North America. The principal varieties are the…
(Encyclopedia) button, knoblike appendage used on wearing apparel either for ornament or for fastening. Although buttons were sometimes used as fasteners by Greeks and Romans, they were more often…
(Encyclopedia) straw, dried stalks of threshed grains, especially wheat, barley, oats, and rye. It has been used from antiquity for bedding, covering floors, and thatching roofs, as fodder and litter…
(Encyclopedia) Aegean civilizationAegean civilizationējēˈən [key], term for the Bronze Age cultures of pre-Hellenic Greece. The complexity of those early civilizations was not suspected before the…
Feedback: Not Just for GuitarsAnatomy and PhysiologyHormonesFeedback: Not Just for GuitarsHow Hormones WorkHypothalamus: The Head HonchoPituitary: The First LieutenantThyroidKidneys: Not Just for…
Just a Little Math Won't HurtTheories of the UniverseChunks of UncertaintyJust a Little Math Won't HurtBorn of ProbabilityThey're Complementary After All Black Holes The traditional…
(Encyclopedia) artificial insemination, technique involving the artificial injection of sperm-containing semen from a male into a female to cause pregnancy. Artificial insemination is often used in…
