Control of ventilation. Control of ventilation refers to the physiological mechanisms involved in the control of physiologic ventilation, which refers to the movement of air into and out of the lungs. Ventilation facilitates respiration.
mindless - lacking the thinking capacity characteristic of a conscious being; the shrieking of the mindless wind. meaningless, nonmeaningful - having no meaning or direction or purpose; a meaningless endeavor; a meaningless life; a verbose but meaningless explanation.
What does defenseless mean? Definitions for defenseless Here are all the possible meanings and translations of the word defenseless. Princeton's WordNet (0.00 / 0 votes) Rate this definition: defenseless, defenceless (adj) lacking protection or support a defenseless child naked, defenseless (adj) having no protecting or concealing cover naked to mine enemies- Shakespeare. defenseless, defenceless (adverb) lacking weapons for self-defense. defenseless, defenceless, defenselessly, defencelessly (adverb) without defense