What's the difference between mensal and menstruous?

Mensal

Definition:

• (a.) Belonging to the table; transacted at table; as, mensal conversation.
• (a.) Occurring once in a month; monthly.

Example Sentences:

Menstruous

Definition:

• (a.) Having the monthly flow or discharge; menstruating.
• (a.) Of or pertaining tj the monthly flow; catamenial.

Example Sentences:

• (1) The personal space zone tended to be larger during the menstruous flow than during the approximate middle of the cycle.