Urochordata, subphylum Urochordata, Urochorda, subphylum Urochorda, Tunicata, subphylum Tunicata
(noun) tunicates
Source: WordNet® 3.1
Tu`ni*ca"ta, n. pl. Etym: [NL. See Tunicate.] (Zoöl.)
Definition: A grand division of the animal kingdom, intermediate, in some respects, between the invertebrates and vertebrates, and by some writers united with the latter. They were formerly classed with acephalous mollusks. The body is usually covered with a firm external tunic, consisting in part of cellulose, and having two openings, one for the entrance and one for the exit of water. The pharynx is usually dilated in the form of a sac, pierced by several series of ciliated slits, and serves as a gill.
Note: Most of the species when mature are firmly attached to foreign substances, but have free-swimming larvæ which are furnished with an elongated tail and somewhat resemble a tadpole. In this state the larva has a urochord and certain other structures resembling some embryonic vertebrates. See Ascidian, Doliolum, Salpa, Urochord, and Illust. of Social ascidian, under Social.
Source: Webster’s Unabridged Dictionary 1913 Edition
28 April 2024
(adjective) of or relating to an inheritable character that is controlled by several genes at once; of or related to or determined by polygenes
According to Guinness World Records, on 25 September 2016, the Birla Institute of Management Technology (India) in Uttar Pradesh, India, constructed the largest coffee cups pyramid consisting of 23,821 cups. They used paper takeaway coffee cups to build the pyramid.
