he·ma·to·zo·on 
(hē′mə-tō-zōŏn′, hĭ-măt′ə-)
(hē′mə-tō-zōŏn′, hĭ-măt′ə-)n. pl. he·ma·to·zo·a (-zōə)
A parasitic protozoan or similar organism that lives in the blood.
he′ma·to·zoal, he′ma·to·zoic adj.
- Williamsport
- William Starke
- William Sydney
- William Tatem, Jr.
- William Tecumseh
- "William the Conqueror."
- William the Conqueror
- "William the Silent."
- William Thomas Green
- William Thomson.
- William Trevor Cox.
- William Turner
- William Vacanarat Shadrach
- (William) Wilkie
- William Worrall
- Willie
- willie
- Willie Howard, Jr.
- Willie Pete
- willies
- willing
- willingly
- willingness
- Willis-Ekbom disease
- williwaw