| ACETYLIDES | • acetylides n. Plural of acetylide. • ACETYLIDE n. any of a class of carbides in which the carbon is present as a diatomic divalent ion. |
| BACKSLIDES | • backslides v. Third-person singular simple present indicative form of backslide. • backslides n. Plural of backslide. • BACKSLIDE v. to fall back. |
| DOWNSLIDES | • downslides n. Plural of downslide. • DOWNSLIDE n. a downward movement. |
| GLIDESLOPE | • glideslope n. (Aviation) The portion of an instrument landing system which provides vertical guidance to an aircraft… • glideslope n. (Aviation) The approach path of an aircraft as it comes in to land. • glide␣slope n. Alternative form of glideslope. |
| INVALIDEST | • INVALID adj. not valid. |
| LANDSLIDES | • landslides n. Plural of landslide. • LANDSLIDE v. to win an election by a huge majority. |
| MACROLIDES | • macrolides n. Plural of macrolide. • MACROLIDE n. any of a class of antibiotics used to treat fungal infections. |
| PARAGLIDES | • paraglides v. Third-person singular simple present indicative form of paraglide. • PARAGLIDE v. to glide through the air on a special parachute. |
| ROCKSLIDES | • rockslides n. Plural of rockslide. • ROCKSLIDE n. a fall of rocks down a hillside. |
| SLIDESHOWS | • slideshows n. Plural of slideshow. • slide-shows n. Plural of slide-show. • slide␣shows n. Plural of slide show. |
| SNOWSLIDES | • snowslides n. Plural of snowslide. • SNOWSLIDE n. a slide of snow, an avalanche. |
| SQUALIDEST | • squalidest adj. Superlative form of squalid: most squalid. • SQUALID adj. filthy, neglected. |
| TAILSLIDES | • tailslides n. Plural of tailslide. • tail␣slides n. Plural of tail slide. • TAILSLIDE n. an aerobatic manoeuvre in which an aircraft that has been put into a steep climb stalls and loses height by slipping backwards. |