reddening
41MED — a common symbol for minimum erythemal dose, the smallest amount of ultraviolet radiation that produces observable reddening (erythema) of the skin. (Skin is sensitive to reddening by radiation in only a narrow band of wavelengths around 300… …
42SED — a symbol for standard erythemal dose, a unit used to measure the amount of skin reddening ultraviolet radiation received by a person in the sun or in a tanning salon. One SED is equal to a dose of 100 joules per square meter (J/m2) of skin… …
43rubefy — v.tr. (also rubify) ( ies, ied) 1 make red. 2 Med. (of a counterirritant) stimulate (the skin etc.) to redness. Derivatives: rubefacient adj. & n. rubefaction n. Etymology: ME f. OF rubifier, rubefier f. med.L rubificare f. L rubefacere f. rubeus …
44Acid — Ac id, n. 1. A sour substance. [1913 Webster] 2. (Chem.) One of a class of compounds, generally but not always distinguished by their sour taste, solubility in water, and reddening of vegetable blue or violet colors. They are also characterized… …
45hydracids — Acid Ac id, n. 1. A sour substance. [1913 Webster] 2. (Chem.) One of a class of compounds, generally but not always distinguished by their sour taste, solubility in water, and reddening of vegetable blue or violet colors. They are also… …
46oxacids — Acid Ac id, n. 1. A sour substance. [1913 Webster] 2. (Chem.) One of a class of compounds, generally but not always distinguished by their sour taste, solubility in water, and reddening of vegetable blue or violet colors. They are also… …
47oxygen acids — Acid Ac id, n. 1. A sour substance. [1913 Webster] 2. (Chem.) One of a class of compounds, generally but not always distinguished by their sour taste, solubility in water, and reddening of vegetable blue or violet colors. They are also… …
48Redden — Red den (r?d d n), v. t. [imp. & p. p. {Reddened} ( d nd); p. pr. & vb. n. {Reddening}.] [From {Red}, a.] To make red or somewhat red; to give a red color to. [1913 Webster] …
49Reddened — Redden Red den (r?d d n), v. t. [imp. & p. p. {Reddened} ( d nd); p. pr. & vb. n. {Reddening}.] [From {Red}, a.] To make red or somewhat red; to give a red color to. [1913 Webster] …
50Rubescence — Ru*bes cence, n. The quality or state of being rubescent; a reddening; a flush. [1913 Webster] …
