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Heron of Alexandria

(Encyclopedia)Heron of Alexandria hērˈŏn [key] or Hero, mathematician and inventor. The dates of his birth and death are unknown; conjecture places them between the 2d cent. b.c. and the 3d cent. a.d. He is beli...

heron

(Encyclopedia)heron hĕrˈən [key], common name for members of the family Ardeidae, large wading birds including the bittern and the egret, found in most temperate regions but most numerous in tropical and subtrop...

Hero, Greek mathematician

(Encyclopedia)Hero, Greek mathematician: see Heron of Alexandria. ...

Hesychius of Alexandria

(Encyclopedia)Hesychius of Alexandria hēsĭkˈēəs [key], fl. 5th cent.?, Alexandrian grammarian. Hesychius is known as the compiler of an invaluable lexicon, a glossary of unusual words and expressions occurring...

Hypsicles of Alexandria

(Encyclopedia)Hypsicles of Alexandria hĭpˈsĭklēz [key], astronomer of ancient Greece. Some authorities place Hypsicles in the 2d cent. b.c. and some in the 2d cent. a.d. The 14th and 15th books of Euclid's Elem...

Didymus of Alexandria

(Encyclopedia)Didymus of Alexandria, d. c.396, Greek grammarian and theologian, also called Didymus the Blind. His treatise On the Holy Ghost was translated by St. Jerome, who studied briefly with him. Although Did...

Clement of Alexandria

(Encyclopedia)Clement of Alexandria (Titus Flavius Clemens), d. c.215, Greek theologian. Born in Athens, he traveled widely and was converted to Christianity. He studied and taught at the catechetical school in Ale...

snowy heron

(Encyclopedia)snowy heron: see egret.

Cyril of Alexandria, Saint

(Encyclopedia)Cyril of Alexandria, Saint: see Cyril, Saint (St. Cyril of Alexandria). ...

Alexandria Troas

(Encyclopedia)Alexandria Troas trōˈăs [key], ancient Greek seaport city, Mysia, NW Asia Minor, called Troas in the Bible. It was important under the Greeks and Romans. ...