tipiṭaka : [nt.] the 3 divisions of the Buddhist Canon.

A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]

Tipitaka. The Buddhist canon of scripture, called in Sanskrit Tripitaka, is designated Tipitaka in Pali, which despite the great prestige of Sanskrit became the language of Therevada Buddhism. The name means "threefold collection," referring to the three divisions: (1) the vinaya-pitaka, the "basket," an assemblage of material (pitaka) treating of Buddhism, its history, regulations, and discipline; (2) the sutta-pitaka, the discourses attributed to the Buddha himself, containing what is accounted the fundamental teaching of Buddhism; and (3) the abhidhamma-pitaka, whose content probably arose in the 4th and 3rd c. BCE and consists of metaphysical speculations although intended primarily for the practical purpose of dissolving that mental resistance, obstinacy, or rigid narrowness that can be an obstacle to authentic spiritual insight. Compare the threefold structure or arrangement of the Hebrew Bible.

Geddes MacGregor, Dictionary of Religion and Philosophy, New York: Paragon House, 1989

三藏 (1) The Buddhist canon, which is traditionally categorized into three divisions ("three baskets"), in Sanskrit, tripiṭaka and Pali tipiṭaka. These are thesūtra-piṭaka (sermons collection) 經, vinaya-piṭaka (rules collection) 律, and the abhidharma-piṭaka (philosophical treatises collection) 論. Over the long history of Buddhism, a variety of tripiṭakas have developed within various cultural and linguistic regions, including the Tibetan Canon, the Pali Canon, the Chinese, Japanese 大藏經 and Korean Canons 高麗大藏經. The latter three have much overlap with each other. (2) A title attached to the names of great Buddhist scholars who were considered to be masters of the Buddhist canon. (3) A reference to the scriptures and teachings of lesser vehicle Buddhism. (4) The three practitioners of śrāvaka 聲聞, pratyekabuddha 縁覺 and bodhisattva 菩薩.