Declension :: Declension (n.) The act or the state of declining; declination; descent; slope.
Declension :: Declension (n.) A falling off towards a worse state; a downward tendency; deterioration; decay; as, the declension of virtue, of science, of a state, etc..
Declension :: Declension (n.) Act of courteously refusing; act of declining; a declinature; refusal; as, the declension of a nomination..
Declension :: Declension (n.) Inflection of nouns, adjectives, etc., according to the grammatical cases..
Declension :: Declension (n.) The form of the inflection of a word declined by cases; as, the first or the second declension of nouns, adjectives, etc..
Declension :: Declension (n.) Rehearsing a word as declined.
Lens :: Lens (n.) A piece of glass, or other transparent substance, ground with two opposite regular surfaces, either both curved, or one curved and the other plane, and commonly used, either singly or combined, in optical instruments, for changing the direction of rays of light, and thus magnifying objects, or otherwise modifying vision. In practice, the curved surfaces are usually spherical, though rarely cylindrical, or of some other figure..