| testosteronă substantiv feminin | nearticulat | articulat | |
| nominativ-acuzativ | singular | testosteronă | testosterona |
| plural | testosterone | testosteronele | |
| genitiv-dativ | singular | testosterone | testosteronei |
| plural | testosterone | testosteronelor | |
| vocativ | singular | testosteronă, testosterono | |
| plural | testosteronelor | ||