(computing) A space-partitioning data structure for organizing points in a k-dimensional space, used in search algorithms etc.

(mycology) Any member of the kingdom Fungi; a eukaryotic organism typically having chitin cell walls but no chlorophyll or plastids. Fungi may be unicellular or multicellular.

Alternative form of three of a kind

(biochemistry) Any of several classes of enzyme that remove acetyl groups from proteins