yaba monkey tumour virus; Yaba monkey virus; Yaba tumour; Yaba virus; YAC; yacare; yacca; yaffingale; yaffle; yag laser surgery; yaguarundi; yak; yakamilk; yakare; yakin; yakoots; yaksha; yalah; yam; yama; yamma; yamp; yang deficiency; yanggona; y-angle; Yangtze oedema; Yangtze Valley fever; yankee; yapock; yapon; yaqona; yard; yarder; yarding; yarke; yarnut; yarrow; Yarrowia lipolytica alkaline extracellular protease; yarwhip; yatapoxvirus; yaup; yaupon; yaw; yawl-rigged; yawn; yawning; yaws; yaw-weed; Y-axis; Yb; Y body; Y cartilage; y chromatin; Y chromosome; Ycp1 proteinase; YCR101 protein kinase; yd; ye; yea; year; yeara; yearling; yearly; yearn; yearnings; years of potential life lost; yeast; yeast artificial chromosome; yeast artificial chromosomes; yeast autolysate; yeast, dried; yeast extract agar; yeast infection; yeast RNase; yeasts; yeast syndrome; yeast vectors; yeldrine; yellow; yellowammer; yellow atrophy of the liver; yellowbill; yellowbird; yellow body; yellow bone marrow; yellow cartilage; yellow corallin; yellow disease; yellow enzyme; yellow-eyed; yellow fat cell; yellow fever; yellow fever vaccination; yellow fever vaccine; yellow fever virus; yellow fibres; yellowfin; yellowfish; yellow-golds; yellowhammer; yellow hepatisation; yellow jacket stings; yellowlegs; yellow ligament; yellow mercury iodide; yellow nail; yellow nail syndrome; yellow precipitate; yellowroot; yellow root; yellows; yellowseed; yellowshins; yellow skin; yellow soft paraffin; yellow spot; yellowtail; yellowthroat; yellowtop; yellow vision; yellow wax; yellowwood; yellowwort; yellow yolk; yelper; yeman; yenite; yeoman; yeomanlike; yeomanly; yeomanry; yeorling; yerba; yerba santa; Yersinia; yersinia enterocolitica; Yersinia frederiksenii; yersinia infections; Yersinia intermedia; Yersinia kristensenii; yersinia pestis; yersinia pseudotuberculosis; yersinia pseudotuberculosis infections; Yersinina pestis; yersiniosis; yes; yet; yew; yield; yielding; yield strength; yield stress; yin deficiency; yin-yang; yite; YKR2 protein kinase; ylides; Y-linkage; y-linked; Y-linked gene; y-linked inheritance; Y-linked locus; yllanraton; y map; ym-shift; ynambu; yockel; yoga; yoghurt; yogurt; yohimbine; yoit; yoke; yoke bone; yoke-toed; yolk; yolk cell; yolk cells; yolk cleavage; yolk membrane; yolk sac; yolk sac carcinoma; yolk sac tumour; yolk stalk; yoncopin; yond; yoni; Yorke's autolytic reaction; young; Young-Helmholtz theory of colour vision; Young, Hugh; Young prostatic tractor; Young's rule; Young syndrome; youngth; Young, Thomas; Young, William; youpon; youth; youthful; youze; yowe; yowley; ypsiliform; ypsiloid; YPT1 protein geranylgeranyltransferase; Yrk kinase; YRP kinase; ysame; yscJ proteinase; Y-shaped ligament; YSK1 kinase; y-suppressed lethal gene; ytterbic; ytterbium; yttria; yttric; yttrious; yttrium; yttrium-90; yttrium isotopes; yttrium radioisotopes; yttro-cerite; yttro-tantalite; yu; yucca; yuckel; yuen; yugoslavia; yukon territory; yulan; yule; yumas; yunx; yupon; Yvon, Paul; Yvon's test; y wave;