urochord
         n 1: primitive marine animal having a saclike unsegmented body
               and a urochord that is conspicuous in the larva [syn:
               {tunicate}, {urochordate}, {urochord}]
         2: a notochord of a larval tunicate typically confined to the
            caudal region

English Dictionary: urochord	by the DICT Development Group
From WordNet (r) 3.0 (2006) [wn]:
Urochorda n tunicates [syn: Urochordata, subphylum Urochordata, Urochorda, subphylum Urochorda, Tunicata, subphylum Tunicata]
From WordNet (r) 3.0 (2006) [wn]:
Urochordata n tunicates [syn: Urochordata, subphylum Urochordata, Urochorda, subphylum Urochorda, Tunicata, subphylum Tunicata]
From WordNet (r) 3.0 (2006) [wn]:
urochordate n primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva Synonym(s): tunicate, urochordate, urochord
From WordNet (r) 3.0 (2006) [wn]:
Urosaurus n a reptile genus of Iguanidae [syn: Urosaurus, {genus Urosaurus}]
From WordNet (r) 3.0 (2006) [wn]:
Urosaurus ornatus n a climbing lizard of western United States and northern Mexico Synonym(s): tree lizard, Urosaurus ornatus
From WordNet (r) 3.0 (2006) [wn]:
Uruguay River n a South American river that arises in southern Brazil and flows south to the Rio de la Plata; the northern section forms the boundary between Argentina and Brazil and the southern section forms the boundary between Argentina and Uruguay
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Bullhead \Bull"head`\, n.       1. (Zo[94]l.)             (a) A fresh-water fish of many species, of the genus                   {Uranidea}, esp. {U. gobio} of Europe, and {U.                   Richardsoni} of the United States; -- called also                   {miller's thumb}.             (b) In America, several species of {Amiurus}; -- called                   also {catfish}, {horned pout}, and {bullpout}.             (c) A marine fish of the genus {Cottus}; the sculpin.          2. (Zo[94]l.)             (a) The black-bellied plover ({Squatarola helvetica}); --                   called also {beetlehead}.             (b) The golden plover.          3. A stupid fellow; a lubber. [Colloq.] --Jonson.          4. (Zo[94]l.) A small black water insect. --E. Phillips.          {Bullhead whiting} (Zo[94]l.), the kingfish of Florida             ({Menticirrus alburnus}).
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Urger \Ur"ger\, n.       One who urges. --Beau. & Fl.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Dovekie \Dove"kie\, n. (Zo[94]l.)       A guillemot ({Uria grylle}), of the arctic regions. Also       applied to the little auk or sea dove. See under {Dove}.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Guillemot \Guil"le*mot`\, n. [F.] (Zo[94]l.)       One of several northern sea birds, allied to the auks. They       have short legs, placed far back, and are expert divers and       swimmers.          Note: The common guillemots, or murres, belong to the genus                {Uria} (as {U. troile}); the black or foolish guillemot                ({Cepphus grylle}, formerly {Uria grylle}), is called                also {sea pigeon} and {eligny}. See {Murre}.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Urochord \U"ro*chord\, n. [2d uro- + chord.] (Zo[94]l.)       The central axis or cord in the tail of larval ascidians and       of certain adult tunicates. [Written also {urocord}.]
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Urochordal \U`ro*chor"dal\, a. (Zo[94]l.)       Of or pertaining to the Urochorda.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Urochrome \U"ro*chrome\, n. [1st uro- + Gr. [?] color.]       (Physiol. Chem.)       A yellow urinary pigment, considered by Thudichum as the only       pigment present in normal urine. It is regarded by Maly as       identical with urobilin.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Urocord \U"ro*cord\, n. (Zo[94]l.)       See {Urochord}.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Urochord \U"ro*chord\, n. [2d uro- + chord.] (Zo[94]l.)       The central axis or cord in the tail of larval ascidians and       of certain adult tunicates. [Written also {urocord}.]
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Urocord \U"ro*cord\, n. (Zo[94]l.)       See {Urochord}.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Urochord \U"ro*chord\, n. [2d uro- + chord.] (Zo[94]l.)       The central axis or cord in the tail of larval ascidians and       of certain adult tunicates. [Written also {urocord}.]