Fossil: alternatives and connections

A fossil cephalopod shell related to the nautilus. There are many genera and species, and all are extinct, the typical forms having existed only in t…

Open English WordNet identifies the related term as a narrower or more specific lexical category.

A conical calcareous fossil, tapering to a point at the lower extremity, with a conical cavity at the other end, where it is ordinarily broken; but w…

Open English WordNet identifies the related term as a narrower or more specific lexical category.

Properly, belonging to an order of alga: (Fucoideae) which are blackish in color, and produce oospores which are not fertilized until they have escap…

Open English WordNet identifies the related term as a narrower or more specific lexical category.

An old person.

Open English WordNet identifies the related term as a broader lexical category for at least one sense.

One versed in paleontology.

Open English WordNet records a derivational relationship between these word forms.

One versed in paleontology.

Open English WordNet records a derivational relationship between these word forms.

A large, extinct bird (Didus ineptus), formerly inhabiting the Island of Mauritius. It had short, half-fledged wings, like those of the ostrich, and…

Open English WordNet places these words in at least one shared synset. They share a lexicalised sense, but context, register and collocation should still be checked before substitution.

A dull old fellow; a person behind the times, over-conservative, or slow; -- usually preceded by old.

Open English WordNet places these words in at least one shared synset. They share a lexicalised sense, but context, register and collocation should still be checked before substitution.