elaboration working out | developing in intricate and painstaking detail |
course course of study course of instruction class | education imparted in a series of lessons or meetings, he took a course in basket weaving, flirting is not unknown in college classes |
art class | a class in which you learn to draw or paint |
childbirth-preparation class | a course that teaches pregnant women to use breathing and concentration and exercise techniques to use during labor |
life class | an art class using a live human model |
shop class shop | a course of instruction in a trade (as carpentry or electricity), I built a birdhouse in shop |
class struggle class war class warfare | conflict between social or economic classes (especially between the capitalist and proletariat classes) |
class action class-action suit | a lawsuit brought by a representative member of a large group of people on behalf of all members of the group |
course session class period recitation | a regularly scheduled session as part of a course of study |
Schizomycetes class Schizomycetes | a former classification |
class Cyanobacteria Cyanophyceae class Cyanophyceae | photosynthetic bacteria found in fresh and salt water, having chlorophyll a and phycobilins, once thought to be algae: blue-green algae |
Sarcodina class Sarcodina | characterized by the formation of pseudopods for locomotion and taking food: Actinopoda, Rhizopoda |
Ciliata class Ciliata Ciliophora class Ciliophora | class of protozoa having cilia or hairlike appendages on part or all of the surface during some part of the life cycle |
Chrysophyceae class Chrysophyceae Heterokontae class Heterokontae | all the yellow-green algae having flagella of unequal length |
Xanthophyceae class Xanthophyceae | yellow-green algae |
Bacillariophyceae class Bacillariophyceae Diatomophyceae class Diatomophyceae | marine and freshwater eukaryotic algae: diatoms |
Phaeophyceae class Phaeophyceae | brown algae, mostly marine and littoral eukaryotic algae |
Cyclosporeae class Cyclosporeae | in more recent classifications superseded by the order Fucales |
Euglenophyceae class Euglenophyceae | coextensive with the division Euglenophyta |
Chlorophyceae class Chlorophyceae | algae distinguished chiefly by having flagella and a clear green color, their chlorophyll being masked little if at all by other pigments |
Ulvophyceae class Ulvophyceae | alternative name for the class Chlorophyceae in some classifications |
Charophyceae class Charophyceae | in some classifications: contains only the order Charales |
Rhodophyceae class Rhodophyceae | coextensive with the Rhodophyta: red algae |
Mastigophora class Mastigophora Flagellata class Flagellata | protozoa having flagella |
Cryptophyceae class Cryptophyceae | motile usually brownish-green protozoa-like algae |
Sporozoa class Sporozoa | strictly parasitic protozoans that are usually immobile, includes plasmodia and coccidia and piroplasms and malaria parasites |
Ascidiaceae class Ascidiaceae | sometimes classified as an order: sea squirts |
Thaliacea class Thaliacea | small class of free-swimming tunicates, sometimes classified as an order |
Larvacea class Larvacea | small free-swimming tunicates, sometimes classified as an order |
Placodermi class Placodermi | extinct group of bony-plated fishes with primitive jaws |
Chondrichthyes class Chondrichthyes | cartilaginous fishes |
Aves class Aves | (ornithology) the class of birds |
amphibia class Amphibia | the class of vertebrates that live on land but breed in water, frogs, toads, newts, salamanders, caecilians |
Reptilia class Reptilia | class of cold-blooded air-breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates, once the dominant land animals |
Arachnida class Arachnida | a large class of arthropods including spiders and ticks and scorpions and daddy longlegs, have four pairs of walking legs and no wings |
Pauropoda class Pauropoda | an obscure class of minute arthropods with branched antennae and topairs of legs |
Symphyla class Symphyla | small class of minute arthropods, unimportant except for the garden centipede |
Tardigrada class Tardigrada | in some classifications considered a separate phylum: microscopic arachnid-like invertebrates living in water or damp moss having pairs of legs and instead of a mouth a pair of stylets or needlelike piercing organs connected with the pharynx |
Chilopoda class Chilopoda | arthropods having the trunk composed of numerous somites each bearing one pair of legs: centipedes |
Diplopoda class Diplopoda Myriapoda class Myriapoda | arthropods having the body composed of numerous double somites each with two pairs of legs: millipedes |
Merostomata class Merostomata | used in some classifications, includes the orders Xiphosura and Eurypterida |
Mammalia class Mammalia | warm-blooded vertebrates characterized by mammary glands in the female |
Hyalospongiae class Hyalospongiae | sponges with siliceous spicules that have six rays, choanocytes are restricted to finger-shaped chambers |
Scyphozoa class Scyphozoa | coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes |
Hydrozoa class Hydrozoa | coelenterates typically having alternation of generations, hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes |
Anthozoa class Anthozoa Actinozoa class Actinozoa | a large class of sedentary marine coelenterates that includes sea anemones and corals, the medusoid phase is entirely suppressed |
Nuda class Nuda | ctenophores lacking tentacles, comprises one genus: beroe |
Tentaculata class Tentaculata | ctenophores have retractile tentacles |
Turbellaria class Turbellaria | free-living flatworms |
Trematoda class Trematoda | parasitic flatworms (including flukes) |