释义 |
fixative /ˈfɪksətɪv /noun1A chemical substance used to preserve or stabilize biological material prior to microscopy or other examination: an alcoholic fixative [mass noun]: ten double drops of fixative...- The main purpose of chemical fixatives is to preserve the tissue, changing its fresh liquid sol state to a hardened preserved fixed state.
- Because of this, a variety of fixatives are used to preserve and stabilize certain structures and inclusions to withstand the procedures just outlined.
- Osmium tetroxide was used as a secondary fixative and stain prior to a second wash in phosphate buffer.
1.1A substance used to stabilize the volatile components of perfume: sandalwood is regarded by many perfumers as a good fixative...- Finally, while the fixatives provide the background, the base note lends the perfume its lasting impression.
- Ambergris is used as a fixative in the manufacture of perfume.
- This plant is one of the natural sources of Benzyl benzoate, an aromatic liquid used as a fixative and solvent in the manufacture of flavorings and perfume.
1.2A liquid sprayed on to a pastel or charcoal drawing to fix colours or prevent smudging: he sprayed his design with fixative...- But the real emphasis of this book is in developing an understanding of how the body moves and the many media and techniques for rendering the human form: chalks, charcoal, pastel, fixative, watercolors and oil paints.
- The top bid was $7,500 for the painting whose intensity and tactile quality are achieved with layers of charcoal, then fixative, then more layers, then sand-paper.
- Gelatine, an animal by-product rich in collagen, was frequently used by Middle Age painters as a fixative to bind pigments to canvas or wood.
2A substance used to keep things in position or stick them together: the swift glues these thin twigs to a wall using its own saliva as a fixative...- Applying the fixatives before dyeing gives both fiber components of the fabric a positive charge.
- The book dummies, storyboards, jacket covers, and double page spreads were proudly displayed, still smelling strongly of glue and fixatives.
- The team will create a new fixative mixture that combines minerals and slow-release growth factors.
adjective(Of a substance) used to fix or stabilize something.They determined whether use of fixative fluid, organic solvent, or both might contribute to the low numbers....- The sandals are sewn by hand, made with low-impact, fiberreactive dyes and no fixative chemicals.
- In the early 1970s, the use of the fixative paste was eliminated, which meant that tissue could be removed and processed immediately by frozen section.
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