o
English Thesaurus
1. the blood group whose red cells carry neither the A nor B antigens (noun.body)
| hypernym | : | blood group, blood type, |
| definition | : | human blood cells (usually just the red blood cells) that have the same antigens (noun.body) |
2. the 15th letter of the Roman alphabet (noun.communication)
| member meronym | : | latin alphabet, roman alphabet, |
| definition | : | the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe (noun.communication) |
3. a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust (noun.substance)
| hypernym | : | chemical element, element, |
| definition | : | any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter (noun.substance) |
| hypernym | : | gas, |
| definition | : | a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely (noun.substance) |
| hyponym | : | liquid oxygen, lox, |
| definition | : | a bluish translucent magnetic liquid obtained by compressing gaseous oxygen and then cooling it below its boiling point; used as an oxidizer in rocket propellants (noun.substance) |
| substance meronym | : | air, |
| definition | : | a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of (noun.substance) |
| substance meronym | : | h2o, water, |
| definition | : | binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent (noun.substance) |
| substance meronym | : | ozone, |
| definition | : | a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation) (noun.substance) |
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