Roots that are derived from an independent word and may be used together or with affixes to form new words.
combined form
The combined form for bladder is cysto- as in cystoscope or urinary cystogram.
it is combined with oxygen
Most of the metals can occur in the native and combined forms.
they form compounds
your mom is combined with neon
a compound
molecule
Sparta and Athens
Compounds
Organs
alphabet