| heme | 1. <biochemistry> Compounds of iron complexed in a porphyrin (tetrapyrrole) ring that differ in side chain composition. Haems are the prosthetic groups of cytochromes and are found in most oxygen carrier proteins. 2. <prefix> haem-, eaning relating to blood. Origin: G. Haima (21 Jun 2000) |
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| hemelytrum | Origin: NL. See Hemi, and Elytron. <zoology> One of the partially thickened anterior wings of certain insects, as of many Hemiptera, the earwigs, etc. Source: Websters Dictionary (01 Mar 1998) |
| hemeralopia | <medicine> A disease of the eyes, in consequence of which a person can see clearly or without pain only by daylight or a strong artificial light; day sight. Some writers (as Quain) use the word in the opposite sense, i. E, day blindness. See Nyctalopia. Origin: NL, fr. Gr, the opposite of; day + of . See Nyctalopia. Source: Websters Dictionary (01 Mar 1998) |
| hemerobian | <zoology> A neuropterous insect of the genus Hemerobius, and allied genera. Origin: Gr. Day + life. Source: Websters Dictionary (01 Mar 1998) |
| hemerobid | <zoology> Of relating to the hemerobians. Source: Websters Dictionary (01 Mar 1998) |
| hemerocallis | <botany> A genus of plants, some species of which are cultivated for their beautiful flowers; day lily. Origin: NL, fr. Gr.; day + beauty. Source: Websters Dictionary (01 Mar 1998) |