BioLemmatizer
Lemmatization tool for morphological analysis of biomedical literature
...It is tailored to the biological domain through integration of several published lexical resources related to molecular biology. It focuses on the inflectional morphology of English, including the plural form of nouns, the conjugations of verbs, and the comparative and superlative form of adjectives and adverbs.
README: https://sourceforge.net/projects/biolemmatizer/files/
The BioLemmatizer 1.2 release adds an optional functionality to normalize British English spellings into American English spellings and then retrieve corresponding lemmas.
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