Pronunciation: (lem'u),[key] —n., —pl.lem•mas, lem•ma•taPronunciation: (lem'u-tu).[key] 1. a subsidiary proposition introduced in proving some other proposition; a helping theorem.
2. an argument, theme, or subject, esp. when indicated in a heading.
3. a word or phrase that is glossed; headword.
Pronunciation: (lem'u),[key] —n., —pl.lem•mas.Bot. a bract in a grass spikelet just below the pistil and stamens.