Thomson Scientific Standard Abbreviations
Thomson Scientific abbreviates many commonly occurring words in titles and abstracts in the Derwent World Patents Index (DWPI) database. A list of these abbreviations is given below:
| Abbreviations | Definition |
| addn. or addns. | addition(s) |
| admin. | administration |
| amt. or amts. | amount(s) |
| appts. | apparatus |
| aq. | aqueous |
| atmos. | atmosphere |
| b.pt. | boiling point |
| coefft. or coeffts. | coefficient(s) |
| compsn. or compsns. | composition(s) |
| cpd. or cpds. | compound(s) |
| conc. | concentrated |
| concn. or concns. | concentration(s) |
| contg. | containing |
| corresp. | corresponding |
| deg. | degrees |
| deriv. or derivs. | derivative(s) |
| determn. | determination |
| dia. | diameter |
| dil | dilute |
| distn. | distillation |
| equiv. or equivs. | equivalent(s) |
| esp. | especially |
| evapn. | evaporation |
| extn. | extraction |
| e.g. | for example |
| mole or moles | gram molecule(s) |
| gp. or gps. | group(s) |
| insol. | insoluble |
| liq. | liquid |
| mfr. | manufacture |
| mfd. | manufactured |
| mfg. | manufacturing |
| max. | maximum |
| m.pt. | melting point |
| min. | minimum |
| mixt. or mixts. | mixture(s) |
| mol. or mols. | molecule(s) |
| Non-aq. | Non-aqueous |
| obtd. | obtained |
| opt. | optionally |
| oxidn. | oxidation |
| partic. | particularly |
| pts.wt. | parts by weight |
| ppm. | parts per million |
| ppte. or pptes. | precipitate(s) |
| pptd. | precipitated |
| pptn | precipitation |
| pref. | preferably |
| prefd. | preferred |
| prepn. | preparation |
| prepd. | prepared |
| prim. | primary |
| prod. or prods. | product(s) |
| prodn. | production |
| purificn. | purification |
| quat. | quaternary |
| redn. | reduction |
| satd. | saturated |
| sec. | secondary |
| sepd. | separated |
| sepg. | separating |
| sepn. | separation |
| soln. or solns. | solution(s) |
| substit. or substits. | substituent(s) |
| substd. | substituted |
| temp. or temps. | temperature(s) |
| tert. | tertiary |
| i.e. | that is |
| vol. | volume |
| wt. | weight |
| w.r.t. | with respect to |