aldehydic

As adjectives the difference between aldehydic and alcoholic

is that aldehydic is of, relating to, or being an aldehyde; having the character of an aldehyde while alcoholic is of or pertaining to alcohol.

As a noun alcoholic is

a person addicted to alcohol.

In organic chemistry|lang=en terms the difference between aldehydic and monoaldehyde

is that aldehydic is (organic chemistry) of, relating to, or being an aldehyde; having the character of an aldehyde while monoaldehyde is (organic chemistry) any aldehyde containing a single aldehydic group.

As an adjective aldehydic

is (organic chemistry) of, relating to, or being an aldehyde; having the character of an aldehyde.

As a noun monoaldehyde is

(organic chemistry) any aldehyde containing a single aldehydic group.