Microscopic organism such as an amoeba or paramecium.

synonym: animalculum.

Roget 366: animal, animal kingdom; fauna; brute creation.    beast, brute, creature, critter [U.S.]; wight, created being; creeping thing, living thing; dumb animal, dumb creature; zoophyte.    [major divisions of animals] mammal, bird, reptile, amphibian, fish, crustacean, shellfish, mollusk, worm, insect, arthropod, microbe.    [microscopic animals] microbe, animalcule etc. 193.    [reptiles] alligator, crocodile; saurian; dinosaur (extinct); snake, serpent, viper, eft; asp, aspick^†.    [amphibians] frog, toad.    [fishes] trout, bass, tuna, muskelunge, sailfish, sardine, mackerel.    [insects] ant, mosquito, bee, honeybee.    [arthropods] tardigrade, spider.    [classification by number of feet] biped, quadruped; [web-footed animal] webfoot.    flocks and herds, live stock; domestic animals, wild animals; game, ferae naturae [Lat.]; beasts of the field, fowls of the air, denizens of the sea; black game, black grouse; blackcock^†, duck, grouse, plover, rail, snipe.    [domesticated mammals] horse etc. (beast of burden) 271; cattle, kine^†, ox; bull, bullock; cow, milch cow, calf, heifer, shorthorn; sheep; lamb, lambkin^†; ewe, ram, tup; pig, swine, boar, hog, sow; steer, stot^†; tag, teg^†; bison, buffalo, yak, zebu, dog, cat.    [dogs] dog, hound; pup, puppy; whelp, cur, mongrel; house dog, watch dog, sheep dog, shepherd's dog, sporting dog, fancy dog, lap dog, toy dog, bull dog, badger dog; mastiff; blood hound, grey hound, stag hound, deer hound, fox hound, otter hound; harrier, beagle, spaniel, pointer, setter, retriever; Newfoundland; water dog, water spaniel; pug, poodle; turnspit; terrier; fox terrier, Skye terrier; Dandie Dinmont; collie.    [cats--generally] feline, puss, pussy; grimalkin^†; gib cat, tom cat.    [wild mammals] fox, Reynard, vixen, stag, deer, hart, buck, doe, roe; caribou, coyote, elk, moose, musk ox, sambar^†.    [birds] bird; poultry, fowl, cock, hen, chicken, chanticleer, partlet^†, rooster, dunghill cock, barn door fowl; feathered tribes, feathered songster; singing bird, dicky bird; canary, warbler; finch; aberdevine^†, cushat^†, cygnet, ringdove^†, siskin, swan, wood pigeon.    [undesirable animals] vermin, varmint [U.S.], pest.    ... show more

Roget 32: smallness etc. adj.; littleness etc. (small size) 193; tenuity; paucity; fewness etc. (small number) 103; meanness, insignificance (unimportance) 643; mediocrity, moderation.    small quantity, modicum, trace, hint, minimum; vanishing point; material point, atom, particle, molecule, corpuscle, point, speck, dot, mote, jot, iota, ace; minutiae, details; look, thought, idea, soupcon, dab, dight^†, whit, tittle, shade, shadow; spark, scintilla, gleam; touch, cast; grain, scruple, granule, globule, minim, sup, sip, sop, spice, drop, droplet, sprinkling, dash, morceau^†, screed, smack, tinge, tincture; inch, patch, scantling, tatter, cantlet^†, flitter, gobbet^†, mite, bit, morsel, crumb, seed, fritter, shive^†; snip, snippet; snick^†, snack, snatch, slip, scrag^†; chip, chipping; shiver, sliver, driblet, clipping, paring, shaving, hair.    nutshell; thimbleful, spoonful, handful, capful, mouthful; fragment; fraction etc. (part) 51; drop in the ocean.    animalcule etc. 193.    trifle etc. (unimportant thing) 643; mere nothing, next to nothing; hardly anything; just enough to swear by; the shadow of a shade.    finiteness, finite quantity.    ... show more

Roget 193: littleness etc. adj.; smallness etc. (of quantity) 32; exiguity, inextension^†; parvitude^†, parvity^†; duodecimo^†; Elzevir edition, epitome, microcosm; rudiment; vanishing point; thinness etc. 203.    dwarf, pygmy, pigmy^†, Liliputian, chit, pigwidgeon^†, urchin, elf; atomy^†, dandiprat^†; doll, puppet; Tom Thumb, Hop-o'-my-thumb^†; manikin, mannikin; homunculus, dapperling^†, cock-sparrow.    animalcule, monad, mite, insect, emmet^†, fly, midge, gnat, shrimp, minnow, worm, maggot, entozoon^†; bacteria; infusoria^†; microzoa [Micro.]; phytozoaria^†; microbe; grub; tit, tomtit, runt, mouse, small fry; millet seed, mustard seed; barleycorn; pebble, grain of sand; molehill, button, bubble.    point; atom etc. (small quantity) 32; fragment etc. (small part) 51; powder etc. 330; point of a pin, mathematical point; minutiae etc. (unimportance) 643.    micrometer; vernier; scale.    microphotography, photomicrography, micrography^†; photomicrograph, microphotograph; microscopy; microscope (optical instruments) 445.    ... show more