3 letters:
los

4 letters:
dose, gros, most, noce, zeos

5 letters:
adios, alose, altos, boece, boese, bowse, broce, close, cohos, cohse, dohse, gatos, groce, grohs, gross, grosz, hlose, idose, kapos, lohse, lowse, mimos, post-, roese, rowse, souce, sowce, sowse, towse

6 letters:
aeroce, ahmose, aldose, allose, almose, ariose, arkose, beauce, blowse, butros, cutose, df oce, dolose, filose, froese, fucose, gelose, grosze, growse, hypnos, jocose, kamose, kroese, lobose, lutose, marose, morose, mucose, mycose, negoce, nivose, octose, osmose, otiose, pno ce, porose, po pse, rimose, serose, stowce, tinyos, triose, tylose

7 letters:
acidose, actuose, adipose, agarose, amylose, aporose, aranyos, boutros, caseose, cavazos, comoros, cormose, cystose, denosse, diagnos, dulcose, ebriose, engross, epulose, faroese, glucose, glutose, glycose, heroess, hypnose, ingross, isodose, labiose, legatos, narcose, nervose, no-lose, pectose, phf oce, plagose, precoce, precose, psicose, spicose, talcose, threose, villose

8 letters:
acaulose, aggerose, albumose, allulose, ancylose, anhelose, ankylose, annulose, apoptose, aprikose, botryose, centavos, cumulose, diagnose, dumetose, faeroese, flexuose, floccose, fructose, hamulose, hederose, jtf loce, keratose, levulose, loculose, maculose, megadose, nebulose, nidorose, nubilose, outgross, overdose, paludose, pluviose, precoces, prognose, psychose, pulicose, ribulose, rivulose, rugulose, sabulose, sclerose, setulose, soporose, strumose, suberose, subgross, symbiose, tagatose, thutmose, tortuose, tuberose, tubulose, tumulose, vaporose, varicose, virtuose, xylulose

9 letters:
anchylose, apotheose, bellicose, capillose, cellulose, cespitose, corticose, d-glucose, dermatose, desidiose, doorenbos, edematose, fruticose, grandiose, granulose, harmonyos, l-glucose, laevulose, lamellose, lose-lose, melibiose, methadose, microdose, overgross, plumulose, ramellose, religiose, seraglios, spinulose, steckdose, stupulose, sucralose, surculose, thrombose, trehalose, underdose, vasculose, vernicose, verrucose, viva-voce, vorticose, vulnerose

10 letters:
amiprilose, brucellose, caespitose, cellobiose, chloralose, come close, confragose, draw close, effectuose, egranulose, glandulose, hold close, isohyetose, lachrymose, lignireose, racemulose, radiculose, reticulose, saccharose, siliculose, squamulose, stigmatose, vesiculose, viticulose

11 letters:
aconddylose, anfractuose, arbeitslose, bilharziose, cicatricose, febriculose, formidolose, fruticulose, gentiobiose, glenn close, great gross, infructuose, lethal dose, mollipilose, recall dose, squarrulose, tenebricose, tuberculose, vaginervose, vermiculose, verruculose

12 letters:
antialbumose, booster dose, deoxyglucose, fructiculose, hemialbumose, hypromellose, isomaltulose, semicomatose, suffruticose, trichomatose, warner bros.

13 letters:
blood glucose, dextroglucose, hemicellulose, karrion kross, metempsychose, nanocellulose, pyrocellulose, sale in gross, tristigmatose

14 letters:
chlorophyllose, deae-cellulose, ethylcellulose, hydrocellulose, lignocellulose, monosaccharose, nitrocellulose

15 letters:
methylcellulose, nitro-cellulose

16 letters:
ahmose-sitkamose, alpha-chloralose, erythrogranulose

17 letters:
2-deoxy-d-glucose, trinitrocellulose

22 letters:
carboxymethylcellulose