protein (n.)
- albumin
- albuminoid
- antheridium
- antherozoid
- casein
- chlorophyll
- collagen
- elastin
- globin
- globulin
- glycoprotein
- hemoglobin
- histone
- interferon
- lactalbumin
- lipid
- lipoprotein
- lysozyme
- milt
- mucin
- nucleoprotein
- peptide
- peptone
- phosphoprotein
- pollen
- prolamine
- protamine
- proteid
- scum
- seed
- semen
- sperm
- spermatid
- spermatocyte
- spermatozoid
- spermatozoon
