| COENENCHYMAS | • COENENCHYMA n. gelatinous material uniting the polyps of an anthozoan colony. |
| COLLENCHYMAS | • collenchymas n. Plural of collenchyma. • COLLENCHYMA n. the supportive tissue of plants. |
| DYSMENORRHEA | • dysmenorrhea n. (Medicine) Painful menstruation (menstrual#Adjective pain), viewed as a symptom#Noun in any of various disorders. • dysmenorrhea n. (Medicine) Painful menstruation (menstrual#Adjective pain), viewed as a disorder#Noun in its own right… • DYSMENORRHEA n. painful menstruation, also DYSMENORRHOEA. |
| HAEMOCYANINS | • haemocyanins n. Plural of haemocyanin. • HAEMOCYANIN n. an oxygen-carrying pigment in arachnids, equivalent to haemoglobin in mammals. |
| HEMATOXYLINS | • hematoxylins n. Plural of hematoxylin. • HEMATOXYLIN n. a dye obtained from logwood, also HAEMATOXYLIN. |
| HEMODYNAMICS | • hemodynamics n. (Medicine) The circulation and movement of blood in the body, and the forces involved therein. • HEMODYNAMICS n. a branch of physiology that deals with the circulation of the blood, also HAEMODYNAMICS. |
| HYALOMELANES | • HYALOMELANE n. a vitreous form of basalt, aka tachylite, also HYALOMELAN. |
| HYDROMANCERS | • hydromancers n. Plural of hydromancer. • HYDROMANCER n. one who practises hydromancy. |
| HYDROMANCIES | • hydromancies n. Plural of hydromancy. • HYDROMANCY n. divination by the appearance or motion of liquids (as water). |
| HYDROMEDUSAN | • hydromedusan adj. (Zoology) Relating to the hydromedusas. • HYDROMEDUSAN n. a hydromedusa, also HYDROMEDUSA, HYDROMEDUSOID. |
| HYMENOPLASTY | • hymenoplasty n. (Medicine) Plastic surgery affecting a woman’s hymen, usually involving reconstruction to the unbroken… • HYMENOPLASTY n. surgical reconstruction of the hymen to give the appearance of virginity, usually for religious or cultural reasons. |
| HYOSCYAMINES | • hyoscyamines n. Plural of hyoscyamine. • HYOSCYAMINE n. a drug obtained from henbane. |
| HYPERSOMNIAS | • hypersomnias n. Plural of hypersomnia. • HYPERSOMNIA n. a pathological tendency to sleep excessively. |
| HYSTEROMANIA | • hysteromania n. (Archaic) nymphomania. • hysteromania n. (Archaic) A condition involving both hysteria and mania. • HYSTEROMANIA n. hysterical mania, often marked by erotic delusions and an excessive desire to attract attention. |
| LYMPHOPENIAS | • lymphopenias n. Plural of lymphopenia. • LYMPHOPENIA n. an abnormally low level of lymphocytes in the blood. |
| METHYLATIONS | • methylations n. Plural of methylation. • METHYLATION n. the process of methylating. |
| MONOHYDRATES | • monohydrates n. Plural of monohydrate. • MONOHYDRATE n. a hydrate containing one molecule of water per molecule of the compound. |
| PROSENCHYMAS | • PROSENCHYMA n. supporting plant tissue containing little protoplasm. |
| UNHANDSOMELY | • unhandsomely adv. In an unhandsome manner. • UNHANDSOME adv. not handsome. |