| YAC | <molecular biology> A vector system that allows extremely large segments of DNA to be cloned. Useful in chromosome mapping, contiguous yeast artificial chromosomes covering the whole Drosophila genome and certain human chromosomes are available. Acronym: YAC (15 Nov 1997) |
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| yacare | <zoology> A South American crocodilian (Jacare sclerops) resembling the alligator in size and habits. The eye orbits are connected together, and surrounded by prominent bony ridges. Synonym: spectacled alligator, and spectacled cayman. Alternative forms: jacare. The name is also applied to allied species. See: Jacare. Source: Websters Dictionary (01 Mar 1998) |
| yacca | <botany> A West Indian name for two large timber trees (Podocarpus coriaceus, and P. Purdicanus) of the Yew family. The wood, which is much used, is pale brownish with darker streaks. Source: Websters Dictionary (01 Mar 1998) |