Proteus, n. In classical mythology, a sea god who had the power of assuming different shapes. He could become a serpent or a cloud or a bull or anything he chose to become.
Protoplasm, n. From two words meaning “first” and “form.” A substance resembling the white of an egg in appearance, composed of carbon, hydrogen, oxygen, nitrogen, sulphur, and phosphorus. It is the foundation of all living forms.
Protoplasmic, a. Consisting of protoplasm.
Q.
Quartus, n. L. quartus, fourth; the name given in this book to a suppositional plant.
Quintus, n. L. quintus, fifth; the name given in this book to a suppositional plant.
R.
Rain, n. A.-S. regn, rain; the water falling in drops through the atmosphere. Water rises as vapor from the moist earth and the sea; it is then condensed by coming in contact with the cold upper air, and falls to the earth as rain.
Reproduced, pp. L. re, again, producere, to produce, to bring forth; produced again, having formed new plants or animals from those already existing.
Retrogressed, pp. Went backward.