Prefixes and Suffixes used in Biology A a-, ab- = separate,away or apart from acro- = extremity acri- = sharp actino- = star-like ad- = to, near, or towards aero = air or oxygen affinis- = liking ala- = wing alb- = white allo = different alveolar = small cavity amnion = fetal membrane amphi = double an- = not, without ana- = build up angio- = vessel annulus = ring-like ante- = before anti- = against anus = posterior opening apo- = from apsid, apsis = arch-like aqua = water arach- = spider-like arch- = ancient or old arrest = to stop astro- = star-like atrium = cavity or opening atro- = black audio- = hearing auricle- = ear-like auto- = self axial = central or at the axis axis = central line B bas- = at the base of something bi- = two or double bio = living or life -blast = cell, simple group of cells brancial = gills bronchus = breathing duct buccal = mouth cavity bulb = like a bulb C caecum- = part of intestine caerul- = sky blue calyx = husk or covering canine = dog-like caput- = head-like cardia = heart carno- = flesh cat(a) = break down cath- = down cavity = opening cavus = hollow cent- = hundred centro = center or middle cephal = head or brain-like cera- = horn-like -cerc = tail chemi = chemical chloro = green choan- = funnel-shaped chondr = cartilage -chondrus = cartilaginous chord = string-like chorion = skin chrome = color chromo = colored chron- = time chryso- = gold chyme = juice-like cilia = hair-like ciner- = grey circum- = around -clast = break co- = with, together coelom = body cavity con = together conch- = shell-like -condyle = knob-like constrict- = bring together contra- = opposite carp- = body corti-, cortex- = outer layer cosm- = spacial design -crania = head-like cric- = ring-like crist- = crest cru- = leg-like cten- = comb-like cune- = wedge cuti- = skin cyano- = blue cycle, cyclo- = circular cyto- = jelly-like D de- = down or away from dec- = ten dens = tooth-like derm = skin di-, dia- = through, between, apart, acroos from digit = finger-like disc = flat round plate distal = further, furthest away, away from something dorsal = back ductor, -ducens = leading E e-, ex- = away from or out of ecto- = outer or outside ek-, ekto- = outside ell(e) = small or tiny enanti = opposite en-, endo- = inner or inside epi- = on or upon eryth- = red ethmo- = sieve ex(o) = outside F facie- = appearance of -factor = making falci- = sickle-shaped fasci- = band -ferens = carrying fibre- = thin strand filo- = soft, fine thread fin- = end or finish flagella(um) = whip-like flex- = bent flocc- = soft, wholly mass follicle = small sac for, fore- = before form- = shape funic = strand G gast- = stomache-like -gen(ic) = producing genit- = reproductive structure germ = growth geo- = earth-like giga- = billion glen- = socket-like glom- = spherical gloss- = tongue -glotta = tongue-like gluteo- = hind-quarters, buttocks glyco = sweet gnath- = jaw-like granul- = small particles gula- = throat gyro- = turning H hemo- = blood, blood-like hemi- = half hepa- = liver hepta- = seven hetero- = different or other hex- = six hippo- = horse-like histo- = webbed holo- = whole or entire homo- = same horm- = stimulating humo - fluid or liquid hyal- = translucent hydro = water hyoid = Y or U shaped (wishbone) hyo- = Y-shaped hyper- = above hypo- = beneath I -ichthyes = fish-like or fish -iform = like something in- = within, not, or on incus = anvil-shaped infra- = below inter- = between intra- = inside or within intro- = within iris- = originally multicolored iso- = equal to -itis, -itus = inflamed or swollen K karyo = nucleus kilo = one thousand kinet = motion or movement L labia- = lips lacer- = tear, tearing, or torn lam(ina)- = a thin, uniform sheet latera- = along the side ledi- = scale -lemma = husk or covering luteo- = yellow leuco- = white levator = rising lig = connect ligament = strap or attachment -lingus = tongue lipid = fatty material lob- = lobe or region -logy, -ology = study something lopho- = ridge lucid = clear lymph- = body fluid lys = break or tear apart M macro- = large macula = mark major = greater mal = bad man- = hand media- = central mega- = great, million meio = less mela-, melano- = black, dark mer(os) or -mere = part meso- = middle meta- = after, coming later, middle micro- = small, millionth milli- = thousandth minor = lessor mito = thread or thread-like mono- = single, one morph- = to change mult-, multus- = many myo- = muscle N nano= billionth necros- = death or dead neo- = new nephro- = kidney or kidney-like neuro- = nerve-like neutr = neither/nor nicti- = blinking node = knot or constricted nom- = name -nomic = named as, law non- = nine, not noto- = back O oct- = eight oculo- = eye odont- = tooth-like -oid = in the form of omni- = all -omos = shoulder opercul- = lid, door os-, osteo- = bone ostium- = hole ovum = egg, egg-like oxy- = acidic P palaeo- = old -pallium = thin covering pan- = all, universal para- = near, alongside, associated with parie- = wall pectin- = comb-like ped-, pod- = foot or footed pend- = suspended or hanging penta- = five peri- = around phaeo- = brown phag-, phage- = to eat phil- = affinity or love phobos = fear or fearing -phore = bearer photo-, phos-, = light phyl- = containing -physis = growth -phyte = plant or plant-like -pile = felt pino = to drink pisi- = pea-like plac- = flat plate -plasm = fluid or formless substance -plat = flat pleuro- = from the side plex- = interlacing threads -pod(ium) = foot poly = many por(i)- = opening port- = gateway potamo- = river pre-, prae- = before prim- =first pro- = before, prior, first proto- = first pseudo = false pteri- thin, wing, or fern-like pubi- = mature pulmo- = long purpurpa- = purple pyg- rear or posterior pyri- = pear-like Q quad-, = four quint- = five R rachi- = spine-like radi- =round re- = back, again rect- = straight renal- = kidney or kidney-like retic- = network retro- = back or reverse rheo- = flow rhodo = red rostrum- = projection rota- = to rotate or to circle rumin- = chewing S sac- = bag sacchar = sugar sagitt- = arrow-like sarc- = flesh scal- = scale-like sclera- = hard or dry selen- = moon-like sem- = male sept- division or seven sinus = duct soma = body sperm = seed sphen- = wedge spirac- = vent stereo- = double, more than one stero- = spatial, solid stoma- = opening strat- =layer styl-, style = pillar-like, point, or cylinder-like sub- = beneath sulcus- =groove super- =above sym-, syn- = together T tact- = touch taxis- = movement tect- =covering temp- = time termin- =ending terr- = earth test- = covering tetra- = four -thalamus = chamber theca- = covering -therm = heat or temperature thermo- = warm -tome = a cut thio = sulfur containing thylaco = sac or pouch trans = across tre-, tri- = three tribo- = lubricate -trichia = hair or hairlike troch- = pulley-wheel troph- = to bend or move tuber- = lump tubule = tube-like turbin- = spiral U ultra = beyond uni- = one unci- = hook uro- = tail V vacu = empty valent = strength or strong valva- = valve vent- = below or underneath ver- = true verdi = green verm- = worm villus- = finger-like visu- = sight vitell- = pertaining to eggs vitr- = glass-like vivi- = living X xantho- = yellow xero- = dry xiphi- = sword-like Z zoo- = animal zygo- = fusion -zyme = yeast