Glide

Glide Glide, n. 1. The act or manner of moving smoothly, swiftly, and without labor or obstruction. [1913 Webster]

They prey at last ensnared, he dreadful darts, With rapid glide, along the leaning line. --Thomson. [1913 Webster]

Seeing Orlando, it unlink'd itself, And with indented glides did slip away. --Shak. [1913 Webster]

2. (Phon.) A transitional sound in speech which is produced by the changing of the mouth organs from one definite position to another, and with gradual change in the most frequent cases; as in passing from the begining to the end of a regular diphthong, or from vowel to consonant or consonant to vowel in a syllable, or from one component to the other of a double or diphthongal consonant (see Guide to Pronunciation, [sect][sect] 19, 161, 162). Also (by Bell and others), the vanish (or brief final element) or the brief initial element, in a class of diphthongal vowels, or the brief final or initial part of some consonants (see Guide to Pronunciation, [sect][sect] 18, 97, 191). [1913 Webster]

Note: The on-glide of a vowel or consonant is the glidemade in passing to it, the off-glide, one made in passing from it. Glides of the other sort are distinguished as initial or final, or fore-glides and after-glides. For voice-glide, see Guide to Pronunciation, [sect][sect] 17, 95. [1913 Webster]

3. (A["e]ronautics) Movement of a glider, a["e]roplane, etc., through the air under gravity or its own movement. [Webster 1913 Suppl.]