A xanthoma is a yellow nodule or mass. The plural is xanthomata.
xanthomaxanthoma
Luteal means related to a mass of yellow glandular tissue.
A mass.
Nodule is a term used to describe a mass of yellow glandular tissues.
The medical term for the mass of chewed food ready to be swallowed is "bolus."
A bolus
There's no particular medical term for that description of a physical exam finding.
Stroma is the medical term meaning the connective tissue that provides the framework for an organ. It's counterpart is parenchyma, which means the main mass of the organ.
A mass of tissue growing uncontrollably is a cancerous tumor.
Osteopenia is an abnormal reduction in bone mass.
The medical term for a soft v-shaped mass that hangs from the roof of the back of the mouth is "uvula."