The most common clinically important species found in this group include the M. avium complex (M. avium and M. intracellulare), M. kansasii, M. xenopi, M. simiae, M. szulgai, M. scrofulaceum, M. malmoense, M. terrae-nonchromogenicum complex, M. haemophilum, and M. genavense.
keener. 1  1 : having a fine edge or point : sharp a keen knife. 2  2 : having or showing mental sharpness a keen observation. 3  3 : very sensitive (as in seeing, smelling, or hearing) keen eyesight. 4  4 : full of enthusiasm : eager â¦ everybody was very keen to hear details of what had happened â¦ â J. K. Rowling, Goblet of Fire.
Keener is a Canadian slang term used to describe someone who is overly eager to learn and prove themselves. Can sometimes be considered to describe a suck up too. Simply words are nerd, geek, smartypants, etc.