| argon | <chemistry, element> A substance regarded as an element, contained in the atmosphere and remarkable for its chemical inertness. Origin: Gr. Inactive. Source: Websters Dictionary (01 Mar 1998) |
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| argonaut | 1. Any one of the legendary Greek heroes who sailed with Jason, in the Argo, in quest of the Golden Fleece. 2. <zoology> A cephalopod of the genus Argonauta. Origin: L. Argonauta, Gr.; + sailor, ship. See Argo. Source: Websters Dictionary (01 Mar 1998) |
| argonauta | <zoology> A genus of Cephalopoda. The shell is called paper nautilus or paper sailor. The animal has much resemblance to an Octopus. It has eight arms, two of which are expanded at the end and clasp the shell, but are never elevated in the air for sails as was formerly supposed. The creature swims beneath the surface by means of a jet of water, like other cephalopods. The male has no shell, and is much smaller than the female. See Hectocotylus. Source: Websters Dictionary (01 Mar 1998) |
| Argonz | J., Argentinian physician. See: Argonz-Del Castillo syndrome. (05 Mar 2000) |
| Argonz-Del Castillo syndrome | <syndrome> Unphysiological lactation and amenorrhoea not following pregnancy characterised by hyperprolactinaemia and a pituitary adenoma. Synonym: Argonz-Del Castillo syndrome. (05 Mar 2000) |