Part 156

LACU´NA, n. Small pit or depression; oftener, an open space or vacuity, as in the palate.

LACU´NÆ, n. pl. Certain small excavations in bone and in mucous membrane.

LACUS´TRINE, a. Lake-inhabiting.

LAMB´DOID, a. L-shaped.

LAMEL´LA, n.; pl. lamellæ, LAM´INA, n.; pl. laminæ, A thin plate or scale; a plate-like process. The processes inside a duck’s bill are lamellæ; the individual barbs of a feather are laminæ.

LAM´ELLATE, LAM´INATE, a. Having, or composed of, laminæ, or series of plates.

LAMELLIROS´TRAL, a. Having a lamellate bill.

LAMELLIROS´TRES, n. pl. A group of lamellate-billed birds (the duck tribe).

LAN´CEOLATE, a. Lance-head shaped; tapering narrowly at one end, less so at the other.

LARYNGE´AL, a. Pertaining to the larynx.

LAR´YNX, n. Adam’s-apple, hollow cartilaginous organ, a modification of the windpipe either at the top or bottom, but especially the former; the lower larynx being called SYRINX (which see).

LAT´ERAL, a. To or towards the side; on either hand from the middle line.

LAT´ERALLY, a. Sidewise.

LATIS´SIMUS, a. for n. A certain muscle of the back.

LEGS. (96.)

LENS (crystalline), n. A circular biconvex transparent body in the eye which brings rays of light to a focus.

LESSER WING-COVERTS, n. pl. The smaller anterior set of secondary coverts in several series upon the plica alaris.

LEVA´TOR, n. Generic name of muscles that elevate; as, levator palpebræ, lifter of the eyelid.

LIG´AMENT, n. Fibrous band or sheet binding bones or other structures together.

LIGAMEN´TUM NU´CHÆ, n. A particular strong elastic ligament along the nape and cervix of many animals.

LIGAMEN´TUM TE´RES, n. A particular strong fibrous cord holding the head of the femur in its socket.

LIM´BATE, a. Having edging of one color against another.

LI´MES FACIA´LIS, n. Facial outline; line of the feathers all around the bill.

LIMICO´LÆ, n. pl. A group of shore-waders, as plover, snipe, etc.

LIMIC´OLINE, a. Shore-inhabiting.

LIN´EAR, a. Narrow, with straight parallel sides; uniformly narrow for a long distance.

LIN´GUA, n. Tongue.

LINIS´CI, n. pl. Reticulations of the podotheca. (Little used.)