node vs lymphoid tissue

node and lymphoid tissue both are nouns.

Word	Noun	Adjective	Verb	Adverb
node	Yes	No	No	No
lymphoid tissue	Yes	No	No	No

As nouns, lymphoid tissue is a hypernym of node; that is, lymphoid tissue is a word with a broader meaning than node:

Other hypernyms of node include lymphatic tissue.

node (noun)	lymphoid tissue (noun)
(computer science) any computer that is hooked up to a computer network	tissue making up the lymphatic system
any bulge or swelling of an anatomical structure or part
the source of lymph and lymphocytes
(astronomy) a point where an orbit crosses a plane
(physics) the point of minimum displacement in a periodic system
(botany) the small swelling that is the part of a plant stem from which one or more leaves emerge
any thickened enlargement
a connecting point at which several lines come together