mi·cro·bub·ble 
(mīkrō-bŭb′əl)
(mīkrō-bŭb′əl)n.
An extremely small bubble, usually only a few hundred micrometers in diameter, that can be uniformly suspended in a liquid such as blood.
- make flesh crawl
- make for
- make fun of
- make good
- make/go the rounds
- make haste
- make hay
- make heads or tails of
- make heavy weather of
- make history
- make it
- make it hot for
- make light of
- make light work of
- make love
- make mincemeat of
- make mock of
- make much of
- make nice
- make no bones about
- make off
- make off with
- make (one's) day
- make one's day
- make (oneself) scarce