noun
microscope slide specimen
A specimen prepared on a glass slide for microscopic examination. Used in biology, medicine, and science education.
from German Präparat
生物の授業で、タマネギの表皮のプレパラートを作った。
In biology class, we made a microscope slide specimen of onion epidermis.
スライドガラス is the glass slide itself, while プレパラート refers to the prepared specimen on the slide.
From German 'Präparat' (preparation, specimen).