noun
heat fixing; heat setting
Technical term used in biology (e.g., fixing bacteria to a slide) and textiles (e.g., setting dye or shape with heat).
細菌をスライドガラスに熱固定する。
Heat-fix the bacteria onto the glass slide.
染色後に熱固定を行うと色落ちしにくくなる。
Heat setting after dyeing makes the color less likely to fade.