|1.||to make or become different in some respect; change|
|2.||informal chiefly (US) (tr) castrate a euphemistic word for spay|
|[C14: from Old French alterer, from Medieval Latin alterāre to change, from Latin alter other]|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
Alanine aminotransferase; an enzyme in serum and body tissues that catalyzes the transfer of amino acid groups from l-alanine to 2-ketoglutarate or the reverse, thus allowing nitrogen to be excreted or incorporated into other compounds.