a flowerless plant growing and producing its reproductive structures at the apex only, as ferns and mosses.
acrogen, ak′ro-jen, n. a plant that grows at the top chiefly, as a tree-fern.
chambers’s twentieth century dictionary (part 1 of 4: a-d) various
any flowerless plant, such as a fern or moss, in which growth occurs from the tip of the main stem
acroesthesia acroesthesia ac·ro·es·the·sia (āk’rō-ěs-thē’zhə) n. extreme hyperesthesia. hyperesthesia of one or more of the extremities.
acrogeria acrogeria ac·ro·ger·i·a (āk’rō-jěr’ē-ə, -gēr’-) n. congenital reduction or loss of subcutaneous fat and collagen of the hands and feet.
acrognosis acrognosis ac·rog·no·sis (āk’rəg-nō’sĭs) n. sensory perception of the limbs.
acrokeratoelastoidosis acrokeratoelastoidosis ac·ro·ker·a·to·e·las·toi·do·sis (āk’rō-kěr’ə-tō-ĭ-lās’toi-dō’sĭs) n. an inherited disorder marked by hyperkeratotic yellow nodules on the palms and soles with disorganization of the dermal elastic fibers.
having the female reproductive organ arising from the apical cell of the stem, thereby terminating its growth, as certain liverworts. historical examples the acrogynous jungermanniaceae fall into a number of natural groups, which cannot, however, be followed out here. encyclopaedia britannica, 11th edition, volume 4, part 3 various