The word "tense" is somewhat abused by language teachers. Technically, it refers only to the time of a verb's action, which may be present, past, or future. However, it's often used when what is really meant is "tense" + "mood".
For example, "present tense" means more than those two words would seem to indicate; it actually means "the present tense of the indicative mood." Likewise, "past subjunctive" means "the past tense of the subjunctive mood."
Any time you reference a specific verb form like "present tense" or "past subjunctive," you're automatically talking about both tense and mood, whether you realize it or not.