stop·word 
(stŏpwûrd′)
(stŏpwûrd′)n.
A frequently used word, such as a or the, that is not indexed in webpages and thus is not used in search engine queries.
- microanatomy
- microarray
- microbalance
- microbar
- microbarograph
- microbe
- microbial
- microbic
- microbiologic
- microbiological
- microbiologically
- microbiologist
- microbiology
- microbiome
- microbiota
- microbrew
- microbrewer
- microbrewery
- microbubble
- microburst
- microbus
- microcalcification
- microcap
- microcapsule
- microcephalic