1.the white matter of the central nervous system, consisting of axons and their myelin sheaths. 2.the soft, marrow-like substance of the interior of such structures as bone, kidney, and adrenal gland. müllerian inhibiting substancea glycoprotein produced by the Sertoli cells of the fetal testis...
a.That which is real or practical in quality or character; practical value:a plan without substance. b.Significance or importance:Did he accomplish anything of substance? 4.Density; body:Air has little substance. 5.Material possessions; goods; wealth:a person of substance. ...
Britannica English:Translation ofsubstancefor Arabic Speakers Last Updated: - Updated example sentences Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
A spray device comprises an atomizing vessel containing therein a pressurized gaseous propellant and a sprayable fluid composition comprising a blend of two chemically reactive components and at least one volatile liquid product in an amount sufficient to prevent any chemical reaction between the two ...
form and substance. a species of matter of definite chemical composition: a chalky substance. controlled substance. the subject matter of thought, discourse, study, etc. Synonyms:subject,theme the actual matter of a thing, as opposed to the appearance or shadow;reality. ...
an analysis of a substance, esp. of an ore or drug:His find required an assay to determine its value. Not to be confused with: essay– try; subject to a test; a short literary composition:She wrote an essay for her final exam. ...
The meaning of STUFF is materials, supplies, or equipment used in various activities. How to use stuff in a sentence.
Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.According to the passage, the numerical value of the concentration level of a substance is only useful if ___. A.the other substances in the area are known B.it...
often in a rather distorted way, from the philosophical senses. (Such expressions as ‘a person of substance’ or ‘a substantial reason’ would be cases of this. ‘Illegal substances’ is nearer to one of the philosophical uses, but not the main one.) There is an ordinary concept in pla...
Perfume definition: a substance, extract, or preparation for diffusing or imparting an agreeable or attractive smell, especially a fluid containing fragrant natural oils extracted from flowers, woods, etc., or similar synthetic oils.. See examples of PER