bolograph vs recording

bolograph and recording both are nouns.

Word	Noun	Adjective	Verb	Adverb
bolograph	Yes	No	No	No
recording	Yes	No	No	No

As nouns, recording is a hypernym of bolograph; that is, recording is a word with a broader meaning than bolograph:

bolograph: record or recording made by a bolometer
recording: a signal that encodes something (e.g., picture or sound) that has been recorded

bolograph (noun)	recording (noun)
record or recording made by a bolometer	the act of making a record (especially an audio record)
	a signal that encodes something (e.g., picture or sound) that has been recorded
	a storage device on which information (sounds or images) have been recorded