noun
phospholipid
Biochemistry term for a lipid containing a phosphate group; a major component of cell membranes.
細胞膜は主にリン脂質の二重層でできている。
Cell membranes are mainly composed of a phospholipid bilayer.
脂質 is the broader term for lipids in general, while リン脂質 specifically refers to phospholipids.
Compound of リン (phosphorus) and 脂質 (lipid). The spelling 燐脂質 uses the older kanji 燐 for phosphorus.