any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
moving from one place to another and back again; "he traveled back and forth between Los Angeles and New York"; "the treetops whipped to and fro in a frightening manner"; "the old man just sat on the porch and rocked back and forth all day"
establish the validity of something, as by an example, explanation or experiment; "The experiment demonstrated the instability of the compound"; "The mathematician showed the validity of the conjecture"
prove formally; demonstrate by a mathematical, formal proof
obtain probate of; "prove a will"
take a trial impression of
be shown or be found to be; "She proved to be right"; "The medicine turned out to save her life"; "She turned up HIV positive"
a reproduction of a written record (e.g. of a legal or school record)
something that has been transcribed; a written record (usually typewritten) of dictated or recorded speech; "he read a transcript of the interrogation"; "you can obtain a transcript of this radio program by sending a self-addressed envelope to the station"
the profession or art of a writer; "her place in literature is secure"
the humanistic study of a body of literature; "he took a course in Russian lit"
creative writing of recognized artistic value
published writings in a particular style on a particular subject; "the technical literature"; "one aspect of Waterloo has not yet been treated in the literature"
protective secretion of the mucous membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium
in some unspecified way or manner; or by some unspecified means; "they managed somehow"; "he expected somehow to discover a woman who would love him"; "he tried to make is someway acceptable"
for some unspecified reason; "It doesn't seem fair somehow"; "he had me dead to rights but somehow I got away with it"; "for some reason they didn't seem to match"