sys·tem·a·tist 
(sĭstə-mə-tĭst, sĭ-stĕmə-)
(sĭstə-mə-tĭst, sĭ-stĕmə-)n.
1. A taxonomist.
2. One who adheres to or formulates a system or systems.
- spirillum
- spirit
- spirited
- spiritedly
- spiritedness
- spiritism
- spiritist
- spiritistic
- spirit lamp
- spiritless
- spiritlessly
- spiritlessness
- spirit level
- spirit of turpentine
- spirit of wine
- spiritous
- spiritual
- spiritual bouquet
- spiritualism
- spiritualist
- spiritualistic
- spirituality
- spiritualization
- spiritualize
- spiritualizer