spider angioma vs angioma

spider angioma and angioma both are nouns.

Word	Noun	Adjective	Verb	Adverb
spider angioma	Yes	No	No	No
angioma	Yes	No	No	No

As nouns, angioma is a hypernym of spider angioma; that is, angioma is a word with a broader meaning than spider angioma:

spider angioma: a dilation of superficial capillaries with a central red dot from which blood vessels radiate
angioma: a tumor consisting of a mass of blood or lymphatic vessels

spider angioma (noun)	angioma (noun)
a dilation of superficial capillaries with a central red dot from which blood vessels radiate	a tumor consisting of a mass of blood or lymphatic vessels