GRE Word List

LUMEN

the cavity of a tubular organ or part

The meaning of the word lumen is the cavity of a tubular organ or part.

Random words

WordMeaning
glowerto look or stare with sullen annoyance or anger
existentialof, relating to, or affirming existence
entomologya branch of zoology that deals with insects
undulatinghaving a wavy surface, edge, or markings
ineffableincapable of being expressed in words : indescribable
flusterto put into a state of agitated confusion : upset
cunningdexterous or crafty in the use of special resources (such as skill or knowledge) or in attaining an end
reciteto repeat from memory or read aloud publicly
gradationa series forming successive stages
discounta reduction made from the gross (see gross