n.; pl. Contangoes [ Prob. a corruption of contingent. ] 1. (Stock Exchange) The premium or interest paid by the buyer to the seller, to be allowed to defer paying for the stock purchased until the next fortnightly settlement day. [ Eng. ] [ 1913 Webster ]

2. (Law) The postponement of payment by the buyer of stock on the payment of a premium to the seller. See Backwardation. N. Biddle. [ 1913 Webster ]

a. (Zool.) Of or pertaining to the Spatangoidea. -- n. One of the Spatangoidea. [ 1913 Webster ]

‖n. pl. [ NL. See Spatangus, and -oid. ] (Zool.) An order of irregular sea urchins, usually having a more or less heart-shaped shell with four or five petal-like ambulacra above. The mouth is edentulous and situated anteriorly, on the under side. [ 1913 Webster ]

n.; pl. Tangos /plu>. [ Sp., a certain dance. ] (a) A difficult dance in two-four time characterized by graceful posturing, frequent pointing positions, and a great variety of steps, including the cross step and turning steps. The dance is of Spanish origin, and is believed to have been in its original form a part of the fandango. (b) Any of various popular forms derived from this. (c) a musical tune appropriate for this dance. [ Webster 1913 Suppl. +PJC ]