delta Definition

the 4th letter of the Greek alphabet

something shaped like a capital Greek delta; especially, geology : the alluvial deposit at the mouth of a river

an increment of a variable —symbol Δ

fourth in position in the structure of an organic molecule from a particular group or atom —symbol ƍ

—used as a code word for the letter d

municipality south and southeast of Vancouver in southwestern British Columbia, Canada population 99,863

fertile region of northwestern Mississippi between the Mississippi and Yazoo rivers

a high amplitude electrical rhythm of the brain with a low frequency of less than four cycles per second that occurs especially in slow-wave sleep, is most prominent in infancy and early childhood, and may exhibit abnormal activity in various conditions (such as traumatic brain injury or dementia) —called also delta, delta rhythm

hepatitis d virus

hepatitis d

an electron ejected by an ionizing particle in its passage through matter

hepatitis d virus