IV

[adjective] [not gradable] - abbreviation for intravenousIV drug users -ive, -ative, -itive, -tive [suffix] - added to verbs to form adjectives meaning showing the ability to perform (to a great degree) the activity represented by the verbIn 'creative', the adjective has been formed from 'create' by adding '-ive'.In 'imaginative', the adjective has been formed from 'imagine' by removing the 'e' and adding '-ative'.In 'acquisitive', the adjective has been formed from 'acquire' by changing its ending and adding '-itive'.In 'descriptive', the adjective has been formed from 'describe' by changing its ending and adding '-tive'.