Synonyms:
southeast, sou'-east, southeastward, SE
Meaning: the compass point midway between south and east; at 135 degrees
Synonyms:
selenium, Se, atomic_number_34
Meaning: a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)