The difference between umber and sienna is that “umber” is a brown clay, somewhat darker than ochre, which contains iron and manganese oxides and “sienna” is a form of clay containing iron and manganese.
The difference between pro and antibiotics is that “pro” is an advantage of something, especially when contrasted with its disadvantages and “antibiotics” is any substance that can destroy or inhibit the growth of bacteria and similar microorganisms, generally transported by the lymphatic system.
The difference between curls and perm is that “curls” is a piece or lock of curling hair; a ringlet and “perm” is a permanent.
The difference between positron and hole is that “positron” is the antimatter equivalent of an electron, having the same mass but a positive charge and “hole” is a hollow place or cavity; an excavation; a pit; an opening in or through a solid body, a fabric, etc.; a perforation; a rent; a fissure.
“std” is abbreviation of standard deviation.
The difference between shiver and fever is that “shiver” is to tremble or shake, especially when cold or frightened and “fever” is a higher than normal body temperature of a person , usually caused by disease.
The difference between perfusion and hypoxia is that “perfusion” is the act of perfusing and “hypoxia” is a condition in which tissues are deprived of an adequate supply of oxygen; anoxia [from 1940s].
The difference between inharmonious and disharmonious is that “inharmonious” is not in harmony; discordant and “disharmonious” is not harmonious; lacking harmony.
The difference between volar and plantar is that “volar” is pertaining to the palm of the hand or the sole of the foot and “plantar” is relating to the sole of the foot.
The difference between sodalite and modality is that “sodalite” is a mineral of alkaline igneous and plutonic rocks that are low in silica, of the chemical composition of sodium aluminum silicate with chlorine, Na4Al3Si3O12Cl. Pink sodalite is sometimes called hackmanite. Sodalite and lazurite form the sodalite Group of silicate minerals and “modality” is the fact of being modal.