meningioma vs neoplasm

meningioma and neoplasm both are nouns.

Word	Noun	Adjective	Verb	Adverb
meningioma	Yes	No	No	No
neoplasm	Yes	No	No	No

As nouns, neoplasm is a hypernym of meningioma; that is, neoplasm is a word with a broader meaning than meningioma:

meningioma: a tumor arising in the meninges which surround the brain and spinal cord; usually slow growing and sometimes malignant
neoplasm: an abnormal new mass of tissue that serves no purpose

Other hypernyms of meningioma include tumor, tumour.

meningioma (noun)	neoplasm (noun)
a tumor arising in the meninges which surround the brain and spinal cord; usually slow growing and sometimes malignant	an abnormal new mass of tissue that serves no purpose