nylon membrane
81Tamborim — avec une baguette Le tamborim est un instrument de musique à percussion brésilien. C est un tambourin moderne, très différent du pandeiro. Facture C est un petit tambourin de 6 pouces (15 cm) de diamètre (exceptionnellement, on peut en… …
82snare drum — a small double headed drum, carried at the side or placed on a stationary stand, having snares across the lower head to produce a rattling or reverberating effect. Also called side drum. [1870 75] * * * ▪ musical instrument also called side drum …
83CRIMINALISTIQUE — La criminalistique est l’art et la science de découvrir, d’analyser et d’identifier les indices matériels des faits; sa méthodologie et sa technique sont essentiellement consacrées à la découverte du fait judiciaire et à l’identification de son… …
84X-ray crystallography — can locate every atom in a zeolite, an aluminosilicate with many important applications, such as water purification. X ray crystallography is a method of determining the arrangement of atoms within a crystal, in which a beam of X rays strikes a… …
85Keratin — Not to be confused with kerogen, carotene, chitin, or creatine. Microscopy of keratin filaments inside cells. Keratin refers to a family of fibrous structural proteins. Keratin is the key structural material making up the outer layer of human… …
86liquid — liquidly, adv. liquidness, n. /lik wid/, adj. 1. composed of molecules that move freely among themselves but do not tend to separate like those of gases; neither gaseous nor solid. 2. of, pertaining to, or consisting of liquids: a liquid diet. 3 …
87harbours and sea works — Introduction harbour also spelled harbor any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… …
88Balloon — A balloon is a flexible bag filled with a type of gas, such as helium, hydrogen, nitrous oxide or air. Early balloons were made of dried animal bladders. Modern balloons can be made from materials such as rubber, latex, polychloroprene or a nylon …
89Toothbrush — Toothbrushes The toothbrush is an oral hygiene instrument used to clean the teeth and gums that consists of a head of tightly clustered bristles mounted on a handle, which facilitates the cleansing of hard to reach areas of the mouth. Toothpaste …
90Dental floss — is made of either a bundle of thin nylon filaments or a plastic (Teflon or polyethylene) ribbon used to remove food and dental plaque from teeth. The floss is gently inserted between the teeth and scraped along the teeth sides, especially close… …
