Acting in a subsidiary, or subordinate, capacity
An object launched to orbit Earth or another celestial body. Satellites are used for research, communications, weather information, and navigation. The first artificial Earth satellite was Sputnik 1, launched by the Soviet Union in October 1957; the first successful American satellite was launched in January 1958.
Possessing some quality, or having been subject to some operation (as substitution), in the second degree; as, a secondary salt, a secondary amine, etc. Compare primary.
(Gram.) Having the function of a noun, adjective, or adverb within a sentence
Present in a minor amount, and not essential.
Accompanying or existing in a subordinate, corroborative, or indirect relationship
The definition of supportive is someone or something who provides emotional help and encouragement.
Giving or able to give help or support
That helps or aids; auxiliary
Find another word for ancillary. In this page you can discover 17 synonyms, antonyms, idiomatic expressions, and related words for ancillary, like: attendant, auxiliary, satellite, secondary, subordinate, subsidiary, needed, necessary, accessory, assistant and collateral.