| external respiration |
the exchange of carbon dioxide and oxygen across external or respiratory surfaces, such as gills, in multicellular organisms. |
| extinct |
no longer existing, as an animal species. [3 definitions] |
| extinction |
the act or process of becoming or making extinct, or of being ended or putting an end to. [2 definitions] |
| extinguish |
to put out (a fire, flame, or light). [4 definitions] |
| extinguishable |
combined form of extinguish. |
| extinguisher |
one that extinguishes, esp. a fire extinguisher. |
| extirpate |
to get rid of completely, as if by pulling up the roots; root out. [3 definitions] |
| extol |
to speak of with high praise or enthusiasm. |
| extort |
to extract or obtain (money or the like) by force, threats, or abuse of authority. |
| extortion |
the act or an instance of coercing someone by force, threats, or abuse of authority to give something valuable, such as money, information, excessive interest, or the like. [2 definitions] |
| extortionist |
a person who commits or practices extortion. |
| extra |
more than is expected or usual. [8 definitions] |
| extra- |
beyond; outside. |
| extra-base hit |
in baseball, a double, triple, or home run. |
| extract |
to remove or take out by use of force. [9 definitions] |
| extractable |
combined form of extract. |
| extraction |
an act or instance of extracting, or the condition of being extracted. [3 definitions] |
| extracurricular |
outside the regular curriculum of a school, or outside of academic pursuits in a school. [2 definitions] |
| extradite |
to transfer (a fugitive) from one state or jurisdiction to another in which he or she is to be tried or imprisoned. |
| extradition |
the legal transfer of a fugitive from one state or jurisdiction to another where he or she is to be tried or imprisoned. |
| extrados |
the outside curve of an arch or a vault. (Cf. intrados.) |