"Tonus" is a word in ENGLISH

A medicine, as an astringent or a tonic, which gives tension or tone to any part of the body.

A family of tones whose regular members are called diatonic tones, and named key tone (or tonic) or one (or …

The tonic or first tone of the scale in which a piece or passage is written; the fundamental tone of …

Uttered, as an element of speech, with tone or proper vocal sound, as distinguished from mere breath sound; intonated; voiced; …

The fourth tone above, or fifth below, the tonic; -- so called as being under the dominant.

The seventh tone of the scale, or that immediately below the tonic; -- called also subsemitone.

The principle of key in music; the character which a composition has by virtue of the key in which it …

Tonicity; as, arterial tone.

The key tone, or first tone of any scale.

Of or relating to tones or sounds; specifically (Phon.), applied to, or distingshing, a speech sound made with tone unmixed …

Increasing strength, or the tone of the animal system; obviating the effects of debility, and restoring healthy functions.

The state of healthy tension or partial contraction of muscle fibers while at rest; tone; tonus.