21. Verre incolore recouvert d'une ou de plusieurs couches de verre coloré transparent ou opaque.
Synonyme :
verre double
Expressions avec plaque
En plaques, par plaques,
par petites zones plates, superficielles.
Familier. Être, répondre à côté de la plaque,
se tromper ; manquer son but.
Synonymes :
inapproprié - incongru
Plaque à gâteau,
en Suisse, moule à tarte.
Plaque tournante,
lieu où convergent de nombreux axes de communication ; centre de multiples opérations ; chose ou personne qui ont une position centrale à partir de laquelle tout rayonne.
Armement
Plaque de blindage,
pièce métallique servant au blindage des matériels militaires, des navires.
Plaque de couche,
plaque métallique fixée à l'extrémité arrière de la crosse d'une arme à feu pour la renforcer et la protéger.
Arts décoratifs
Plaque de cheminée,
contrecœur.
Chemin de fer
Plaque pilote,
plaque de carton utilisée dans des conditions analogues au bâton pilote.
Cytologie
Plaque équatoriale,
ensemble des chromosomes rassemblés à l'équateur de la cellule lors de la métaphase de la mitose.
Électricité
Plaque d'accumulateur,
chacune des électrodes d'un accumulateur, constituée par un cadre inerte, supportant une pâte de matière active.
Électronique
Plaque de déviation,
électrode servant, dans les tubes cathodiques, à dévier le faisceau électronique sous l'action d'un champ électrique.
Géographie
Plaque à vent,
croûte de neige agglomérée et compacte, formée sur de la neige poudreuse restée en place et dont le décollement provoque une avalanche.
Géologie
Plaque (lithosphérique),
unité structurale rigide, d'environ 100 km d'épaisseur, qui constitue avec d'autres unités semblables l'enveloppe externe de la Terre.
Plaque mince,
synonyme de lame mince.
Synonyme :
lame mince.
Tectonique des plaques,
théorie globale expliquant les orogènes et les différents phénomènes géologiques par les mouvements relatifs des plaques lithosphériques rigides se déplaçant sur l'asthénosphère plastique sous l'effet de courant de convection dans le manteau.
Imprimerie
Plaque enveloppante,
forme d'impression typographique en métal ou en plastique mince portant l'image imprimante en léger relief.
Maroquinerie et Sellerie
Plaque de coupe ou plaque à surtailler, à rafraîchir,
plateau de zinc, de verre ou de matériau plastique servant de support pour le découpage des pièces, ou pour les opérations de rafraîchissage, recoupe, encochage, etc.
Médecine
Plaque muqueuse,
lésion de la syphilis secondaire.
Neurologie
Plaque motrice,
différenciation morphologique et fonctionnelle de la fibre musculaire squelettique en regard de laquelle se trouve la terminaison nerveuse de commande, le tout formant la jonction neuromusculaire. (La plaque motrice commande la contraction musculaire lorsqu'elle est excitée par l'influx nerveux.)
Synonyme :
appareil sous-neural
Odontologie
Plaque dentaire,
enduit qui se dépose et recouvre l'émail dans les interstices et les sillons de la denture et qui joue un rôle dans la formation de la carie.
Pyrotechnie
Explosif en plaque,
explosif utilisé pour le formage des métaux.
Serrurerie
Plaque de propreté,
plaque placée sur une porte, autour de la serrure, pour protéger la peinture ou le bois.
Thermique
Plaque de foyer,
plaque ou grille, verticale ou inclinée, située derrière la porte du foyer d'un poêle métallique à combustibles solides.
Zoologie
Plaque ambulacraire,
partie du squelette dermique des échinodermes, bordant le sillon ambulacraire.
Lequel de ces mots n'est pas formé avec le préfixe « mal » ?
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