| ANTIRATIONALITY | • antirationality n. The quality of being antirational. • ANTIRATIONALITY n. being opposed to rationality.
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| AUTHORITATIVELY | • authoritatively adv. In an authoritative manner, being worthy of trust. • AUTHORITATIVE adv. having or proceeding from authority.
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| AUTOTETRAPLOIDY | • autotetraploidy n. The property of being autotetraploid. • AUTOTETRAPLOIDY n. the state of being autotetraploid.
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| COINSTANTANEITY | • coinstantaneity n. Coinstantaneousness. • COINSTANTANEITY n. the state of being coinstantaneous.
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| CONTRACTABILITY | • contractability n. The ability for something to be contracted. • CONTRACTABILITY n. the quality of being contractable.
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| HYPOSTATISATION | • HYPOSTATISATION n. the process of hypostatising, also HYPOSTATIZATION. | 
| HYPOSTATIZATION | • hypostatization n. The act or process of being hypostatized. • HYPOSTATIZATION n. the act of hypostatizing, also HYPOSTATISATION.
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| PHOTOTACTICALLY | • phototactically adv. In terms of or by means of phototaxis. • PHOTOTACTIC adv. exhibiting phototaxis.
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| STALACTITICALLY | • STALACTITICAL adv. of or like a stalactite, also STALACTIC, STALACTITIC. | 
| SYSTEMATISATION | • systematisation n. (British spelling) Alternative form of systematization. • SYSTEMATISATION n. the act of systematising, also SYSTEMATIZATION.
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| SYSTEMATIZATION | • systematization n. The act of systematizing. • systematization n. A systematic organization.
 • SYSTEMATIZATION n. the act of systematizing, also SYSTEMATISATION.
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| TETARTOHEDRALLY | • TETARTOHEDRAL adv. having one fourth the number of planes required by complete symmetry. | 
| TETRAETHYLLEADS | • tetraethyl␣leads n. Plural of tetraethyl lead. • TETRAETHYLLEAD n. a colourless oily insoluble liquid formerly used in petrol to prevent knocking.
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| TETRAMETHYLLEAD | • tetramethyllead n. (Organic chemistry) A compound with chemical formula C4H12Pb, used as an antiknock additive for gasoline. • TETRAMETHYLLEAD n. a volatile poisonous liquid used esp. formerly as an antiknock agent.
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| TRANSLATABILITY | • translatability n. The quality or property of being translatable; ability to be translated. • TRANSLATABILITY n. the state of being translatable.
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| TRANSMUTABILITY | • transmutability n. The ability to be transmuted. • TRANSMUTABILITY n. the quality of being transmutable.
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| UNATTAINABILITY | • unattainability n. The fact of being unattainable, of not being able to be reached or acquired. |