node vs lymph gland

node and lymph gland both are nouns.

Word	Noun	Adjective	Verb	Adverb
node	Yes	No	No	No
lymph gland	Yes	No	No	No

As nouns, node and lymph gland are synonyms defined as:

Other synonyms of node include lymph node.

node (noun)	lymph gland (noun)
(computer science) any computer that is hooked up to a computer network	the source of lymph and lymphocytes
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