Hy' dro gen. The lightest gas known, and one of the elements of water.
Hy' gi ene. From a Greek word meaning health.
Hyp' o glos' sal. Literally "under the tongue"; a nerve of the tongue.
In ci' sor (incido, I cut) teeth are cutting teeth.
In' spi ra' tion (in and spiro, I breathe in).
In tes' tine (-tin). From intus, within.
Lach' ry mal (lachryma, a tear). Pertaining to tears.
Lac' te al (lac, lactis, milk). So called from the milky look of the chyle during digestion.
La cu' na, plu. lacunæ (lakos, a hole). Cavities in the bone structure.
Lar' ynx (lar'-inx). The upper part of the windpipe.