Singing solely or mainly without instrumental accompaniment.
Related to a form of purely vocal music mostly associated with American college performance groups.
In a manner of a choir with no instrumental accompaniment; literally, "in the style of the (Sistine) Chapel (in Rome)", such as a musical Mass done a cappella.
A vocal performance with no instrumental accompaniment.
Instrumental; acting as instruments of nature or of art to a certain destined function or end.
Of food or food products, grown in an environment free from artificial agrichemicals, and possibly certified by a regulatory body.
Of a military unit or formation, or its elements, belonging to a permanent organization (in contrast to being temporarily attached).
Relating to the compounds of carbon, relating to natural products.
Pertaining to or derived from living organisms.
Generated according to the ranking algorithms of a search engine, as opposed to paid placement by advertisers.
Developing in a gradual or natural fashion.
Describing a form of social solidarity theorized by Emile Durkheim that is characterized by voluntary engagements in complex interdependencies for mutual benefit (such as business agreements), rather than mechanical solidarity, which depends on ascribed relations between people (as in a family or tribe).
Harmonious; coherent; structured.
Pertaining to an organ of the body of a living organism.
A living organism, as opposed to a robot or hologram.
An organic food.
An organic compound.