Abstraction

Abstraction: Dealing with ideas rather than events. Abstraction is also a state of mind occupied by abstract ideas.  When we consider the branch of a tree by itself, or the color of leaves, as separate from their size or shape, the act is abstraction.  When we...

Meteor

Meteor: a shooting star; a space rock passing into Earth’s atmosphere, appearing as a bright light in the sky.  From Greek μετέωρον (the thing high up).  Mετέωρον further derives from μετα (among, between, over) and ἀείρω (to lift, to rise...

Aorta

Aorta: The great artery, or trunk of the arterial system. It proceeds from the left ventricle of the heart, giving origin to all the arteries, except the pulmonary arteries. It first rises, when it is called the ascending aorta; then makes a great curve, when it gives...

Absent

Absent: gone, not there, not present physically, or not present mentally.  Absent derives from Latin absunt, which means, they are not here. Absunt itself derives from Latin ab (away) and the infinitve esse (to be). With the condition of American schools these days,...

Aegis

Aegis: a shield, or protective armor; protective influence or power. Aegis comes from the Greek word Αιγίς.  The Aegis was the shield of Zeus in Greek mythology.  Though made of goatskin, it was extremely strong. These days, if you are under the aegis of someone, you...