hemicrania /-krāˈni-ə/ noun

(Gr hēmikrāniā, from krānion skull, head) headache confined to one side

hemicrysˈtalline adjective (petrology)

Consisting of crystals in a glassy or partly glassy groundmass

hemˈicycle noun

1. (Gr kyklos wheel) a semicircle
2. A semicircular structure

hemicyˈclic adjective (botany)

Having some parts in whorls, some in spirals

hemidemisemˈiquaver noun (music)

A note equal in time to half a demisemiquaver

hemihēˈdrism or hemihēˈdry /-dri/ noun

(Gr hedrā a seat) a property of crystals of being hemihēˈdral, or having half the number of symmetrically arranged planes occurring on a holohedron

hemihēˈdron noun

hemihyˈdrate noun

A hydrate with two parts of the compound for one of water

hemimetabolous /-met-abˈəl-əs/ or hemimetabolic /-bolˈik/ adjective

(of insects) developing gradually without a pupal stage

hemimorphˈic adjective

(Gr morphē form) having a polar axis, dissimilar at the two ends

hemimorphˈism noun

hemimorphˈite noun

The mineral electric calamine, hydrous zinc silicate, which forms crystals whose ends are different in form and pyroelectric property

hemiōˈlia or hemiōˈla noun

1. (Gr hēmiolios half as much again, from holos whole) (in medieval music) a perfect fifth
2. Also, a triplet

hemiolic /-olˈ/ adjective

In or based on the ratio of 3 to 2, as the paeonic foot

hemionus /hi-mīˈon-əs/ or hemione /hemˈi-ōn/ noun

(Gr hēmionos mule, from onos an ass) an Asiatic wild ass, the kiang or the dziggetai

hemiparˈasite noun

1. An organism that is partly parasitic, partly independent
2. A saprophyte capable of living parasitically

hemiparasitˈic adjective

hemiparasitˈically adverb

hemiplegia /-plēˈji-ə or -gi-ə/ noun

(Gr plēgē a blow) paralysis of one side only

hemiplegic /-plejˈ or -plējˈ/ adjective and noun

hemˈipode noun

(Gr pous, podos foot) the button quail

Hemipˈtera plural noun

(Gr pteron a wing) an order of insects, variously defined, with wings (when present) often half leathery, half membranous, ie the bugs, cicadas, greenfly, cochineal insect, etc

hemipˈteral, hemipˈteran or hemipˈterous adjective

hemˈispace noun

The area to one side, either left or right, of the body

hemˈisphere noun

1. (Gr hēmisphairion, from sphaira a sphere) a half-sphere divided by a plane through the centre
2. Half of the globe or a map of it (eastern and western hemispheres the eastern and western halves of the terrestrial globe, the former traditionally including Europe, Asia and Africa and the latter, the Americas; northern and southern hemispheres the northern and southern halves of the terrestrial globe divided by the equator)
3. One of the two divisions of the cerebrum

hemispherˈic or hemispherˈical adjective

hemisphēˈroid noun

The half of a spheroid

hemisphēroiˈdal adjective

hemistich /hemˈi-stik/ noun

1. (Gr hēmistichion, from stichos a line) one of the two divisions of a line of verse
2. Half a line, an incomplete or unfinished line
3. An epodic line or refrain

hemˈistichal (or /-isˈ/) adjective

hemˈitrope noun

(Gr tropos a turn) a form of twin crystal in which one twin is as if rotated through two right angles from the position of the other

hemˈitrope, hemitropal /hem-itˈrə-pl/, hemitropic /-tropˈ/ or hemitˈropous adjective

hemizyˈgous adjective

(see zygote) having only one representative of a gene or chromosome, as male mammals, which have only one X-chromosome