Velar a. : Of or pertaining to a velum; esp. (Anat.) of or pertaining to the soft palate.

Velar a. : Having the place of articulation on the soft palate; guttural; as, the velar consonants, such as k and hard q.

Example:
In which language(s) is a simultaneous postalveolar fricative and Velar fricative found?

Taxonomy
languages, velars, velar consonant, articulation, consonants, English, free encyclopedia, tongue, IPA, vowels, roof of the mouth, velar consonants, trill, witch, Hawaiian, kʷ, lips, ata.

Defination from the web:
velar region of the roof of the mouth is relatively extensive and the movements of the dorsum are not very precise, velars easily ... In the velar position the tongue has an extremely restricted ability to carry out the type of motion associated with trills or taps. ...