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butter-and-eggs

(Encyclopedia)butter-and-eggs, common name for a plant of the family Scrophulariaceae (figwort family) and sometimes for other yellow-and-orange flowers. Butter-and-eggs plants are classified in the division Magnol...

Themis

(Encyclopedia)Themis thēˈmĭs [key], in Greek religion and mythology, a Titan. Sometimes identified as an earth goddess, she was more commonly a goddess of law, order, and justice. She was the mother by Zeus of t...

atomic number

(Encyclopedia)atomic number, often represented by the symbol Z, the number of protons in the nucleus of an atom, as well as the number of electrons in the neutral atom. Atoms with the same atomic number make up a c...

Plesiosaurus

(Encyclopedia)Plesiosaurus plēˌsēəsôrˈəs [key], genus of extinct predatory marine reptiles that arose in the Triassic period of geologic time and continued into the Jurassic and Cretaceous periods. Plesiosau...

prickly ash

(Encyclopedia)prickly ash, name for two deciduous shrubs or small trees (Zanthoxylum americanum and Z. clava-herculis) of the family Rutaceae (rue family). They are native to E North America and have prickly twigs ...

petrel

(Encyclopedia)petrel pĕˈtrəl [key], common name given various oceanic birds belonging, like the albatross and the shearwater, to the order known commonly as tube-nosed swimmers. There are two families of petrels...

perch

(Encyclopedia)perch, common name for some members of the family Percidae, symmetrical freshwater fishes of N Europe, Asia, and North America. The perches belong to the large order Perciformes (spiny-finned fishes) ...

albatross

(Encyclopedia)albatross ălˈbətrôs [key], common name for sea birds of the order of tube-nosed swimmers (Procellariiformes), which includes petrels, shearwaters, and fulmars. The wandering albatross, Diomedea ex...

thistle

(Encyclopedia)thistle, popular name for many spiny and usually weedy plants, but especially applied to members of the family Asteraceae (aster family) that have spiny leaves and often showy heads of purple, rose, w...

stock, in botany

(Encyclopedia)stock, in botany, common name for any species of the genus Matthiola, for Malcomia maritima (Virginia stock), and for the wallflower, all belonging to the family Cruciferae (or Brassicaceae; mustard f...
 

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