It won't harm you as long as you keep to the dosages recommended for each. For chronic users, however, this combo made lead to some insomnia. Warning: I was takin â¦ g 10mg oxycodone every 3-4 hours when I took one Sudafed.t won't harm you as long as you keep to the dosages recommended for each. For chronic users, however, this combo made lead to some insomnia. Warning: I was takin â¦ g 10mg oxycodone every 3-4 hours when I took one Sudafed.
Define crestfallen. crestfallen synonyms, crestfallen pronunciation, crestfallen translation, English dictionary definition of crestfallen. adj. Dispirited and depressed; dejected. crestâ²fallâ²enÂ·ly adv. crestâ²fallâ²enÂ·ness n. adj dejected, depressed, or disheartened ËcrestËfallenly adv adj.
Crests and troughs. Waves have moving crests (or peaks) and troughs. A crest is the highest point the medium rises to and a trough is the lowest point the medium sinks to. Crests and troughs on a transverse wave are shown in Figure 1. A crest is a point on the wave where the displacement of the medium is at a maximum.