STRIDULATION n. 3 definitions
The act of making shrill sounds or musical notes by rubbing together certain hard parts, as is done by the males of many insects, especially by Orthoptera, such as crickets, grasshoppers, and locusts.
STRIDULOUS a.
Making a shrill, creaking sound. Sir T. Browne. The Sarmatian boor driving his stridulous cart. Longfellow. Stridulous laryngitis (Med.), a form of croup, or laryngitis, in children, associated with dyspnoea, occurring usually at night, and marked by crowing or stridulous breathing.
SUBTONIC a. 3 definitions
Applied to, or distinguishing, a speech element consisting of tone, or proper vocal sound, not pure as in the vowels, but dimmed and otherwise modified by some kind of obstruction in the oral or the nasal passage, and in some cases with a mixture of breath sound; -- a term introduced by Dr. James Rush in 1833. See Guid…
SURD a. 6 definitions
Uttered, as an element of speech, without tone, or proper vocal sound; voiceless; unintonated; nonvocal; atonic; whispered; aspirated; sharp; hard, as f, p, s, etc.; -- opposed to sonant. See Guide to Pronunciation, §§169, 179, 180.