| Word | Definitions | Synonyms |
|---|---|---|
| heme | (noun) a complex red organic pigment containing iron and other atoms to which oxygen binds | Synonyms: haem, haemitin, hematin, protoheme |
| hemeralopia | (noun) inability to see clearly in bright light | Synonyms: day blindness |
| hemerobiid | (noun) small dark-colored lacewing fly | Synonyms: brown lacewing, hemerobiid fly |