- hexagrammos decagrammus
 - harmonic law
 - have an open mind
 - hold aloof from
 - hold cards close to chest
 - have finger on the pulse
 - have finger on the pulse of
 - hold in check
 - hepatic coma
 - heinrich von kleist
 - harry fitch kleinfelter
 - harry f. klinefelter
 - hans adolf krebs
 - harold w. kroto
 - harold kroto
 - hereditament
 - holding the position of
 - Hitchiti
 - heterosexism
 - Hopi
 - husband's younger brother
 - hieracium venosum
 - heart ventricle
 - husking
 - heterobasidiomycetes
 - hemifacial spasm
 - homelike
 - having a basis
 - helminth
 - hunter_gatherer
 - headhunter
 - harsh on
 - hearthrug
 - he_goat
 - hydroflumethiazide
 - high energy physics
 - high_energy physics
 - home record
 - home room
 - henry hubert turner
 - harmfully
 - hard beech
 - harmlessly
 - huambo
 - Hindu numeral
 - Hindu_Arabic numeral
 - haptoglobin
 - horseshoe bat
 - hognose bat
 - hume cronyn